I have assembled mine twice, as I moved house. One piece of advice is get an electric screwdriver.
They are really solid, mine has a 26in FS and at the old house had two other bikes, one large hardtail and my wife’s medium hardtail. Now it is looking after my DIY tools as well, but needs tidying. I did contemplate getting rid of it when we moved, as we now have a garage, but they feel much more secure than a garage and although it can be a pain to get bikes out when it is clogged up with loads of bikes, they are well designed. I got the shelving and hook pack which helps make better use of the space.
Edit: I have the four bike version.