Rather than fixing the old UI/UX stuffs (and take away time/effort from development/research of the core products), I think it would be more productive to have things like competitions/bounties for building new use-case specific front-ends instead?
I wish your post would lure more people from the community into testing GTCR (and other products) because I am quite sure it helps.
The more users, the stronger product adoption when released.
I am testing a bit the GTCR but I have few available time and I am progressing rather slowly.