I really like this mouse largely because of the number of programmable buttons. When I’m playing fps’s, I like to program my melee and supers onto mouse buttons so I can focus on movement with my left hand on the keyboard and attacks with my right hand on the mouse, so this is really useful for me.DPS: the dps buttons are the two the just left of the left click button, and you can go up or down with with those. There’s a handy set of three rgb lights on the left of the mouse which show you which dpi setting you’re on, you can adjust those settings with the Logitech driver to whatever Dpi levels you need and you get four options you can set. The light come on when you change your dps but turn off after a little bit. I haven’t tried programming those buttons in game yet, so I don’t know if you were to program one to an in game action if it would also change the dps at the same time.Ergonomics/comfort: the mouse is quite comfortable for me, and I have a palm grip. I’ve also never noticed any comfort problems with other mice, but nonetheless, this one is still comfortable. The texture on the sides are fine with me, but my boyfriend doesn’t like the one on the right side, he’s got a weird thing though with textures. I don’t have that problem and actually find the texture nice as it’s not that super smooth almost slippery feeling texture. The scroll wheel has a weird texture that almost feels slippery in a metallic way, if that makes sense? It is grooved as well, though. The mouse comes with adjustable weights you can add, but it’s honestly already pretty heavy, IMO. I didn’t add any of the weights. It’s not heavy to the point of being a problem though.Usability: The G-shift button isn’t super easy for me to reach without shifting my hand forward a bit, but I also have pretty small hands. It’s not so far that it’s a hassle to shift a little either, but the issue with the g-shift button is that you have to hold it while pressing whatever other button you’re trying to access, so it’s a little more difficult. It would probably be easier if you could set it to a toggle weather than holding it, I haven’t tried to do that, but maybe I will see if it’s an option. Again, can’t comment on programming the dpi buttons in game, but you can change the button programming in the Logitech driver too, so I imagine it’s possible to change things around if you want to have something else change your dpi. Now, the scroll wheel. It’s not my favourite, and probably my least favourite aspect of this mouse. As I mentioned above, the texture is smooth-slippery feeling, but I haven’t had any noticeable difficulties with grip on it, and I’m sure the grooves help with that. The grooves are how I feel that the wheel is in fact scrolling for me, without the grooves, it would feel even weirder. You can change the scroll wheel to have the notched roll or a smooth roll, and that’s with the button just below the scroll wheel. I leave it on the notched one or it can be difficult to control, especially if you’re scrolling to switch weapons in game. If you’re scrolling on a page, getting it to register the continuous scroll is kinda hard, it doesn’t always work, but the continuous scroll isn’t something super important to me. I haven’t tested the side scrolling mechanism, tried to but couldn’t find somewhere to use it. Someone previously commented that using it causes the two top click buttons to click down, but I didn’t notice that while pressing for the side scroll, either direction, so it doesn’t seem like that’s a problem for me. I don’t have any problems with the mouse registering movement when I pick it up to move or shift it, but I think I also naturally lift it pretty high, in terms of mouse lifting, but I think that’s also and adjustable setting.Aesthetic: I like the look, the G is the only part that lights up with rgb, but I like the look of rgb lights, so I would have liked more lights on the mouse in visible locations since the G is covered by my hand (from the view of my eyes, the view point in the photo is lower and from the side, so it’s visible) while I’m using it. You can also turn off the lights in the driver settings if you want, and choose different colours, patterns, and speeds. I like that I can match the rgb with my Logitech keyboard, but that’s just because they’re the same brand. I know for the keyboard, you can also download custom light colour/patterns that other people have uploaded, I didn’t see that for the mouse too, but could be because I wasn’t looking for it.All in all, I’d definitely recommend this mouse for people who have a gaming style and preferences similar to mine. My only real issue with it is the scroll wheel, and that’s not to the level of being a deal breaker, and I would have also liked some more visible rgb lights on the mouse, but usability and comfort are more important to me than aesthetics, so it’s not something that really bothers me. I didn’t give five stars only because of the scroll wheel and size being slightly large for me (again, I have small hands, so it’s not something that will affect others the same way it does me). If I could give 4.5, I would. As I test things out, I’ll try to remember to come back and update as needed. So far, I’m loving the mouse and the customizability it offers, as well as the comfort of it (again, noting I’ve never had any problems with comfort in terms of mice before). End of the day, would recommend.