My usual amp which is an old Cyrus One, is out of action at the moment - the Cyrus very clearly betters the Bravo, as it should (except for the use of QP85s which like the little Bravo). I look forward to hearing how it sounds against the G2, but obviously the comparison won't be of great use to most here.
I got my Indeed G2 today, and tried a few tubes in it and compared it to my modestly modded Bravo (2nd iteration of the first design), swapping tubes between them and adjusting bias each time.
The first thing that is immediately apparent is that the Bravo has a lot of background noise by comparison. The G2 is absolutely silent. In the G2 fine detail is more apparent, which could be an effect of the low noise floor, but doesn't seem to be. The modded Bravo also has a warm coloured sound compared to the G2. In all the G2 provides a very obvious upgrade from the Bravo - it absolutely justifies the extra cost (it cost me about £60, shipped to the UK) - I can really recommend the G2 over the older model. I strongly suspect it's as easy a platform for mods as the original too.
I hope anyone else who has this little amp will post their impressions, and hopefully post on any modifications that improve it.