I should probably add my own experiences here too, I guess.
I’ve had a Boombotix Rex speaker for about 6 years now, which was a gift from a friend. The Bluetooth has always been a bit finicky, but it’s tended to sound decent with line in, and feels loud for how small it is, certainly better than a phone speaker, but at this point, only debatably better than the sound from an iPad Pro.
They’re a small company, which I was originally happy to support, but I had a minor issue with the way they handled a customer service request, and have since come to find their marketing rather off-putting, so I am definitely not going to buy a speaker from them again.
Over time, I’ve felt like the sound quality has degraded quite a bit. I’m not sure if this is due to speaker cone issues, or if it’s actually torn or damaged. In any case, recently the battery has stopped holding a charge all-together, so I’m in the market for something new. Line in is requisite, Bluetooth is optional (but seems to always be present on the portable speakers).
The positive words for the JBL Charge are intriguing (I’d imagine you could power a Norns from that one too?), as are those for the BeoPlay.
Maybe I’m misunderstanding something about the Minirigs, but my hesitations there are mostly related to price, size, and form factor – they seem mono until you get two? It’s nice that they offer a subwoofer, but then you’ve got 3 things to remember to charge instead of 1. Anyone swearing by the Minirig Mini’s? Or have thoughts on their app?