My A306 (GB) has arrived and after two days of constant use the results are in...

I'm in love. This little device is absolutely terrific. Everything is so crisp and clear and it works amazingly with my XM3s on BT and wired in (which honestly sounds 10x better). I know a lot of people have an issue with the volume cap, but I'm fully satisfied with what I've found. My average volume is between 70-80 and I can hear every note (without hearing the crashing of the Piccadilly line). As far as I can tell I don't have the bass issue. I've not run any tests, but the bass is pretty rich and much superior to my phone etc.

If you have any questions etc please leave them below!