yea, but we spend losing time in writing games using diskwriter and switching games. gw is more convenient especially when playing multi region games. i use sky3ds but after gw support new3ds i use gw and put sky3ds into rest. it really annoying playing cross region games using sky3ds.
It takes a couple of minutes max to write the games, and about 10 seconds to switch between them. It's not a lot of time at all.