I fell for the marketing, paid reviews and fake review sites so I ended up with an Ender 3 v2. Spent a lot of time trying to level and calibrate it but never managed to get rid of the gantry sag entirely. Eventually discovered that the x axis tensioner didn't quite fit on the aluminium extrusion and had been bent from overtightening at the factory, which was causing the belt to wander, but it was pretty easy to fix by jamming a thin metal spacer in there after I found it. Have spent a bit over €350 on upgrading the printer to get it to a state where I'm (mostly) happy with it.
Was hoping to build an Annex K2 some time, but the component costs have gone up so it's even more expensive now..