I have a set of the Garbo/gut G, which replaced a set of EP weichs. Lower tension but much thicker strings, and benefit from being higher set from the fingerboard. I do a little bowing in the practice room only, and I don't mind the tone for that sort of scratchy jazz solo vibe -- wouldn't wash at all for a classical player.
I find them easier to amplify than the EPs with my setup -- perhaps the shorter sustain reduces their tendency to feedback, and this characteristic is also what would make them a good bluegrass string, in my estimation as someone who doesn't play bluegrass!
For my money, they're a great balance between gut tone and steel-string playability. They do take a while to "break in", both in terms of their tone and their tuning stability, at least when compared with the EPs, which are phenomenal in that regard. Not the cheapest experiment, but one I'm happy I undertook.
Christopher 401T / Gage Realist Soundclip / Fishman Pro-EQ Platinum Bass / fdeck HPF-Pre Series 2
NS Design CR4M EUB / TC Electronic RH450 & Markbass F1 / BFM Jack 112