There's enormous amount of great work done here, models look good, pathfinding is flawless, UI is well integrated with the game. Buildings don't always seem to fit in thematically but building and spawning works well on mechanical level. In many ways it's fantastic.
Being completely honest though, when RTS itch hits I'd much rather play Warlords battlecry or other well polished title, rather than an indie. Creating what you did is extremely impressive, but in order to pick it over one of the classics I'd need a greater push, intriguing plot, improvement in general RTS mechanics, something special to pull me in.
As for bugs only thing that I noticed was minimap, I was in two places at the same time, was using browser build.