Mya-moe myrtle concert is an amazing sound, would make a great uke to take on stage, or just to wow people at a party.
The tenor is great too, and so is the soprano.
Not as warm as mango, but more articulate (seems to have great frequency response) and it's just glorious, like sunshine. Wow.
Here's the video I'm going by (starts at 2:30 for the concert)
Here's the
video of the Tenor
It was in my top five favorite available ukes (apart from uber expensive over $2000 etc) (though it cost 5 times too much $ more me!) along with a KoAloha, and a Ko'olau. I listened to a lot, so I don't say that because they're popular, this is MY take regardless of hype, out of hundreds of ukes I listened to recordings of. Overall I actually liked a much cheaper mainland mango concert more than those three, which was lucky for me, since I couldn't afford any of the others and yet I still got to have my first choice. But my taste is based on how the sound makes me feel. If I was choosing for a performance, and I had the money, I might go with something more articulate, like the mya moe myrtle.
You mentioned an electric, which is a totally different direction, so it seems you might not have settled on what you want yet. It's hard to advise you without knowing what sound you're looking for. I liked the eleuke demo where they put a bunch of different musicians clips back to back. I haven't listened to the one you mentioned much, so I can't compare.
My idea of a mid-life crisis uke would be to go with an individual luthier to make a custom uke, to have a one-of-a-kind, no brand name, but I realize it's not for everybody, it's more involved, and complicated.
About the blackbird, if you really need something for rugged backpacking trips or something, it might make sense, assuming you already have an amazing uke. But if you're simply looking to spend on an amazing uke that wows you, those things aren't designed with sound as the only concern, so why not spend it on one that sounds amazing and moves you?
If you like concerts, and a cheerful angelic sound, it would be hard to go wrong with the mya-moe myrtle concert.
If you like tenors, the mya-moe myrtle tenor is fantastic too, can get a really great bluesy sound out of it. Unique among tenors.
I've heard they have good customer service, caring, prompt etc. I've also heard nothing but good things about the owner of KoAloha.