That's too bad. I am at the beginning of exactly that path. I have my Unraid running my containers and just started building VMs for myself, but I've had much better success in uptime.

I have both a 3 and a 4. My 3 is dialed in pretty good that I trust it to just run. There is some quality of life things on the 4 that I like. The auto bed leveling is nice for swapping sheets without having to change z offset settings. For the price difference between the two I'd go with a 4.

I enjoy it because I am good at it. I can get her off in under 5 minutes. It wasn't always like that. It was half me learning what she liked and half her being comfortable and in the moment enough to actually go. It doesn't matter how good everything is, if there is something dividing her attention it's almost impossible for her to go.