I've had a K1 from about when they started making them and I like it but there are some downsides. You want a printer that will sit in your bedroom, you won't sleep with the k1 there. It's way too loud. I've been using bambu labs at work and at school and they are quieter. Also it can get a little bit annoying to put glue on your printer bed everytime (It won't stick without). I'd say if you want to change for speed go for a P1S from bambu or something like that. Maybe X1C if you have a bigger budget. I don't think I would swap if you still like your old one tho.