Just finished it myself! Had great fun with it. Infact I got it free thanks to PS+ as well as Red Dead Redemption and guess which game I've been playing more? There is a certain charm about this game, certainly feels like an oldschool Mega Drive title and the ending credits gave me a nostalgic feeling, taking me back to Sonic R's credit music (Now why can't more games have a such a happy song to top of the game?)
There are a few issues such as jumping usually cancels out shooting. Though it did not hinder me in my completion, but I can see how some people might be frustrated. All the boss fights were great too, well, except the ones in the ships. Kind of disappointed that after Zone 4 it was just ship battles. Also Zone 7's BG and baddies just seemed to blend in waaaay too much.
Still an awesome game, I am torn in between giving it either a 7 or a 8. But since the chaps at Arkedo are so nice, I shall give it an 8 out of 10.
Sad to hear it's not doing that well though. Where did you hear/get that from?
Steam positions. I think the bad reviews really did kill some of the sales. Thankfully being a free game on PS+ has ensured that SEGA/Arkedo would at least get a lump sum of money for the title, hopefully the DLC sells well enough too so we might see Ash return one day.