Need a good, decent practice amp

[Engle]

keep in mind that the microcube RX is only 5 watts with 4 little speakers. it's really not made to act as an amp when playing with people except quiet people - no bluegrass or other loud music even when acoustic. for quieter at home play, it's pretty awesome.

I guess if it works for you, great.
To me, if a bass amp isn't loud enough to play in a small room with a couple of acoustic guitars, the portability isn't an advantage. For playing at home, I'm ok with something that weighs a little more and costs less.