I've got quite a handful of maps myself and I've soloed all of them at least 3 times. It's starting to get pretty boring going through all these maps alone so I was wondering if anyone would want to play with me every once in a while! My WaW username is NeutronStars and my Steam is Pocket_Infinity so you can add me on one of those. You could also put your WaW/Steam username below so I can add you from there.
I personally love this map, it's very well made for your first map! The only complaints I have is that the starting room is really really big so it allows for easy and overpowered training. The other complaint I have is that there are sooo many doors, but it's still a very good map!
I mean it's not technically a solo map but it is fairly big so I'd say Leviathan. I'm just not sure if the easter egg is solo-able, if you care about that anyway.
I think this map is pretty good, I do have to agree about the Pentagon Thieves thing though. They are quite annoying. But it does add to the effect of the map!