Nice satisfying click clacks when filling in the board. Music is also nice, but loops way too quickly, to the point of me actually kinda loathing it now.

It's missing a pretty essential feature like graying out the numbers at the edges when you're playing. I was stumbling real bad the first couple of hours, but eventually learned to adapt.

The lives system i find is slightly ruining the fun of actually solving the boards, because you can cheat by wasting one whenever you're particularly stuck.

Also this just might be my terribly shaky hands, but the fact that you can't just hold left click, and let it only clear the strait line without swerving elsewhere. Is slightly aggravating.

(Well, end of this overly long rant about picross of all things)

[Edit: Nov 2nd]
I've been informed that there actually IS a feature to "draw" a strait line, but it's of course already too late sadly. But now i know.