For reference I'm 6 ft tall, 220 lb. and I've had this bench for a little over a week. Here are my thoughts..For doing flat bench work it is fine. Decline presses are a little awkward since the smaller pad can't be adjusted so it hyperextends your back a little. I'm planning to get another bench with a full 30 degree decline at some point just for presses so it's a little more comfortable.I can do weighted back extensions on this with no issues by locking into the rollers and leaning over the preacher pad.Hamstring curls are a little difficult due to my size but I can get them done. There are a couple things I did to modify the bench (see pics). Firstly I have all 2in hole plates so I bought one 5lb 1in hole plate and load that one first so my other plates rest against it. I cut some square cardboard and duct taped it to create a wedge to stick between the bar and the 2in plates so they don't shift while working. I also ordered 4in roller pads to replace the 2in ones this comes with. The original ones were pretty unconformable for me. I also wrap some softer towels around the bottom rollers so they weren't grinding on my shins so much. I can get four 10lb Cap plates to just fit on the bottom bar along with the smaller 5lb backing plate.I can do sit-ups easily on the bench. Plenty of room for that.The red 'handles' on the top roller bar have come in handy for doing donkey calf lifts on a smith machine. I set a step under the bar, and can lean over and use the handles to stabilize myself during the exercise.I think there is enough room for preacher/concentration curls. I have to angle myself a little bit can get them done.The elastic bands this came with are a little on the cheap side cheap but they work. I haven't done much with them since I have a cable station but if you needed to you could use them.. Possibly an upgrade to some heavier resistance tubes would be a good idea. The instructions have a few pages of pics for different exercises you can do using the elastic bands.Overall it's a decent bench and I think it's well made. If you're taller and buying this specifically for hamstring curls it's a tight fit and your range of motion will be limited. Still great for the price though. With some mods and some heavier resistance tubes you could probably turn this into a nice little home gym.Good luck on your fitness journey!!