Played It On The Quake Grave
I think you already saw my video, but figured I would post my thoughts anyway.
This is your first map I assume and the concept behind it is cool. I like to idea of a lab that experiments with slipgates. I did like the sections where you'd bounce through several slipgates and end up somewhere but I think the map could've experimented more with this idea and went further with it.
The flow of the level could've used some work as well. While you don't expect anyone's first map to be spectacular (god knows mine isn't) this one could've been fleshed out a bit more in terms of enemy encounters and overall room design.
I know you've released a couple maps already but for your next map, I would focus on a theme or idea and work on it for a little bit. Have other mappers test it, see if your idea works and if it doesn't, find out how to make it work. And most important of all, get those bugs and issues out of there.
I know it's exciting to work on a Quake map and have people play it, but it's obvious that from the several released updates of it that it wasn't ready for release yet. You commented on my video that I wasn't playing the most recent release -- so it's a problem having several releases around like that.
Anyway, stick with it and I look forward to seeing what is next!