I got really turned off when it was listed as "Free (with in-app purchases)". Turns out it's basically a 10 minute demo, after which you have to pay $9.99.
Maybe it's good, but deceptive enough I uninstalled it.
Personally, I find the 'free demo' model far preferable to the two alternatives, upfront payment and microtransaction hell. The former is problematic on iOS where there are no refunds (more or less; at least, Apple's refund process is cumbersome with no guarantee of acceptance) - I've purchased countless apps for a few dollars (after looking at the description and screenshots) just to realize, literally seconds after opening them and actually being able to try them out, that they were either poor quality or otherwise not what I was looking for, followed by deletion from my home screen. And the IAP option, well, it encourages designing the game mechanics to be as dissatisfying as possible, i.e. exactly the opposite of how game design is supposed to work, while constantly tempting you to leap ahead in the game by just paying a small fee. This is what most mobile games do, and it's horrible.
But in Super Mario Run's case, the problem is just that the game's too short. After all, what you call a "10 minute demo" (for anyone reading, it's not actually time limited) is 1 of the 6 worlds in the main game mode; the later levels are harder and thus more time consuming, but not that much. I got halfway through it today in maybe an hour, while collecting all the pink coins for each level.
EDIT: But not the purple and black coins. I just tried collecting those for the first two levels and it takes quite a bit longer. Still not a huge game but they clearly designed for replay value... I wonder why they didn't just add more levels, though. As Super Mario Maker has shown, it doesn't take that much work to create Mario levels when the tileset, mechanics, etc. are already in place.
I don't have a problem with demos, they're great. It's the fact it's not advertised that way that really irked me.
Maybe it's buried in the description somewhere, but the first indication I got that it was a demo was after wasting about 25 minutes downloading, installing, setting up a Nintendo account, downloading more levels, then learning the game mechanics.
But in Super Mario Run's case, the problem is just that the game's too short. After all, what you call a "10 minute demo" (for anyone reading, it's not actually time limited) is 1 of the 6 worlds in the main game mode; the later levels are harder and thus more time consuming, but not that much. I got halfway through it today in maybe an hour, while collecting all the pink coins for each level.
EDIT: But not the purple and black coins. I just tried collecting those for the first two levels and it takes quite a bit longer. Still not a huge game but they clearly designed for replay value... I wonder why they didn't just add more levels, though. As Super Mario Maker has shown, it doesn't take that much work to create Mario levels when the tileset, mechanics, etc. are already in place.