That plug and play looks like a handy deal! There are so many cool little devices out there. They just keep getting better and better. However, some of the original mini things were pretty darn cool too.
I've always loved little amps like that. Trying to remember all the ones I've had over the years. First one was in the mid 70's. It was a 3" x 6" metal box with speaker, input and one volume. It actually sounded pretty darn good! Next was a Rock amp....a small yet powerful little amp built with a very nice wood enclosure. The clean tone was very nice, but it really lived up to it's name with a great ZZ Type drive tone. It could be ran into a bigger amp too. Next was a Rockman.......which I just sold last year! Out of all the various little amps and practice devices I've had, (managing a few music stores provided some nice perks!) I still have a Behringer V-Amp ll, (it has some stellar settings) a Boss digital recorder with amps models/effects/etc, a Korg Pandora, little Korg PX-4 recorder with some great tones, a 30 watt Crate Taxi that sounds great and is much louder (I actually played a gig with it!) that one would think. I picked up a mint Roland Street Cube for $100 a few months ago that is just an amazing little amp!