Pace is too slow, annoying popups, premium content shoved in your face everywhere you look, and drop rates suck. There is a lot of stuff to do, which keeps it interesting for a time, but as the pace drags and drags I can't see myself enjoying this game much longer unless I have money to dump.
It's just a simple Idle game. Some people find them really engaging, while others find them an insane level of boring. It's an unusual genre.