Although I actually love TRX bands, they aren’t a prudent choice for people in apartments. You have to anchor the bands using a stud in your wall, which I wouldn’t personally be comfortable doing in an apartment. Although they do work a variety of muscle groups, you may be better off with a set of resistance bands if you want to save your wall. As far as sliders go, they may be a good choice if you have flooring that is slippery enough to use them on. I suggest going the DIY route (like I did during the height of the pandemic) and use two paper plates as cheap sliders on carpet. You’re welcome.