Like many of their recent games, Novomatic have chosen to use a mobile/tablet style interface even for the desktop version of Autumn Queen. I presume this cuts down on development time (and therefore cost) by only needing a single version of each slot. It doesn't take long to get used to but you can definitely tell it was intended for touchscreen rather than mouse input.
I like the fact the scatters are stacked, but as you still need to get one on each of the five reels in order to trigger the bonus its more about winning additional free spins than increasing your chances of hitting a feature at all. That might have annoyed me, but the game awards lots of extra free spins for each scatter above the minimum of five that starts the bonus.
The top line win is quite poor too at just 500 coins. The wilds and scatters have no payouts of their own too, which feels very wrong if you manage to hit almost a screenful of scatters which must surely be a very rare combination.
All things considered, there just isn't enough to get excited about in this game for me. It's fun, but I can't see me returning to it very often despite the neat free spins feature.