I have a Grizzly 10x22. It is nice, and has been good for me. I have it on a double wide tool chest. Its handy because the tooling is right under the lathe. I am still very much an amateur, but it is a great time learning. I also have wood lathe so I can shape pens on it. I fashioned a tool rest for the metal lathe but it still seems unhandy. The metal lathe is variable speed, but has gear changes to effect that range. Changing gears is a giant PITA, so I have the range set for about 600 to 1700 rpm, which I feel is to low to use lathe chisels, but it certainly can be done. So I move pens back and forth some times. Having said that Danny only has his metal lathe and makes some pens that we all drool at. He is a good machinist and has helped a lot of us at times.
My metal lathe is mt 4 in the head stock and MT3 in the tail, which has led me to purchase all new stuff. There are adapters but they are not as easy as they would like you to believe to interchange. While I really like the 10x22 size of the machine, it has had it's challenges for tooling, being as my wood lathe is MT2. There was some expense in duplicating some tools.
I was at a friends house and he had a LMS lathe. While it was a fair amount smaller than mine, it was an awesome machine. It had both x and y power feed. THey are pricey for the size and the chip tray is extra, where most companies include that, but it sure was nice. It just seemed more refined than my lathe.