Having had the go blu for over a month now im still very happy with it.
Its not perfect though, my former portable BTR5 had a more stable bluetooth connection, go blu randomly skips occasionally, not a deal breaker for me and mostly happens when its in my hand, far away or in movement.
Also the clip on capability of the BTR5 made it feel more portable and useful as a microphone you could hang to your shirt. I will tape a clip to my go blu so this will be better lol.
The SE out sounds a little lackluster compared to the BAL out, so im not really convinced in that S-bal tech of this product but also havent done a really extensive comparison so put an extra grain of salt to this statement.
Now the good part (still comparing to BTR5)
Overall more resolving, with better presentation, more colorful hence more engaging.
Handles picky and hard to drive cans incredibly well for its specs and cost, like the clears or the beyer T1.2 for example, I couldnt believe how well some of these matchups work but they do.
(On some headphones the BTR5 had better synergy for my taste though, but on the majority of my cans the go blu wins, sometimes by a lot)
The way the volume synchronices with the connected device is an amazing feature, the volume wheel is not only good, it can adjust the volume perfectly to where I want it either with the wheel or from my phone. Also 0 accidental volume changes while in pocket.
I really like how subtle the xbass and 3d implementation is, they slightly change the timbre so it can fix some mixes and make some synergies even better.
End of my small review/comparison
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Theres a lot of praise for the qudelix 5k and some new competition like the UP5, btr5 2021 and others soon to be released (maybe a new qudelix?), I may get a q5k just to see if it lives up to the hype lol⌠Though I dont really expect to like it more as I really like the ifi house sound-
And I would also like to try other portable solutions like dongles or bigger boys like the gryphon (having bulk in my pockets annoys so not very likely), so ill see how the go blu stacks up in the not so distant future.