I tried official client and was surprised that there is no GUI whatsoever, no client for windows and client for linux simply doesn't even start. Given that the only thing people can discuss is the Voldemort's white paper. Way to go!
Most of the Grin development community is focussed on the underlying tech at the moment, not surface features like a GUI wallet. A GUI will be almost trivial to wrap around the underlying API for the command line wallet once that's solid. All the warnings about this still being an experiment are there for a reason :)