I have the Blackheart Little Giant(BH5H+BH112) and its really an amazing and very wallet friendly amp if youre just looking for something straight up with no features. The one thing I did do though is swapped the stock tubes for JJs and I really cant say that ive played anything in the price range that sounds anywhere near as good.
Im actually selling mine
Blackheart BH5H + BH112
if youre nearby id be glad to give you a little bit of a deal
P.S. one thing about it though is its really not little, while its not heavy, there are definitely smaller tube amps out there if space is an issue.