That's a nice looking plant. I only have one Gasteria that I got this year. I like it, but the squirrels tasted it to see if they liked it. Fortunately they didn't, but the effects of the taste test will take a while to disappear. I haven't overwintered it yet, but it should do okay. I won't (hopefully) let it freeze, so it just needs to sit until spring during the really cold weather months and then go back outside.