So I have used the sv06 and had a bit of a run in with the sv07. Both are decent machines with their own quirks. The sv06 needs bearings replaced after 3 months of use at the latest, after that runs perfectly. The sv07 uses v-wheels, and is therefore lower maintenance. They both use the same toolhead design and both print well enough. sv07 is a bit more finnicky with cooling (special klipper command for the big fan) but they are both decent machines. I personally run a heavily modified Ender 3 v2, but currently, the Sovols are some of the best bang for the buck. Right now, I would buy the sv06, change the bearings from day one and that’s it. It is basically a 1:1 copy of a Prusa, and printing replacement parts for it is extremely easy, if anything ever breaks. The only thing it “lacks” is a filament sensor (haven’t had the need for one in the time I have been printing), but that is easily added. Do your own research though. Lost in Tech has some great reviews on both machines.