My levels progress quite slowly too, and I'm a fairly new and well.. somewhat experienced<--- *cough* levelmaker... you aren't really the only one who takes ages on making lvls. Perhaps you could host yourself (or ask someone else to privately host your work in progress) and every now and then ask them on how to improve it. I think some parts of the lvl epitome itself suffer from the somewhat hard to move parts (yes, I've used Spaz before too) and "stay there for an eternity and shoot so you'll barely have to worry about a thing" parts of the level. And maybe that dead-end placed bouncer PU too. Well that's my reasons why some people dislike it.