I got the big one. It's still not that big, carbs have to be flipped over to completely get cleaned.
I run mine with mineral spirits in it, seems to work best of stuff I've tried.
No foam or anything but it does make an pretty annoying buzz.
I know people freak about rubber and mineral spirits and or parts cleaner but if it's not left for an extended period of time it doesn't hurt.
I've probably cleaned 200+ carbs with either one and never had an issue.
It also works pretty well on chains. Just remove the heavy crap before you put it in or it will take longer to clean.
If I remember I'll grab a pic...