I've had gut strings on now for about three years or so. There is no other string like Gut. Yes there are tuning issues but you get used to that quickly. Maintenance is not an issue. I haven't done anything with them in all the time I've had them.
The sound is seductive. They are just begging you to Swing. The low tension is much easier on the hands than steels.
You can bow them but I have to say that the G sounds too harsh to use in a serious ensemble. Ok to bow the lower strings for the obligatory long note at the end of a ballad etc.