Despite the relatively bug-free implementation and vividly imagined gaming world, I found I couldn't rate Varkana too highly.
The gameplay itself was rather unfocused and for the most part, left me wandering around wondering what I was supposed to be doing, which is rarely a good thing. The puzzles weren't always obvious (or fair, for that matter) and often required me to duplicate commands (generally considered taboo in modern IF) or perform an unlikely set of tasks.
The general quality of the game seemed to take a dive towards the end, where I suddenly found myself controlling a different character as the plot skidded in a completely incredible direction; most likely the hallmarks of a game completed in a rush.