When I get a huge string of combos and a million achievements in one go, I don't really feel like I had a hand in it. When I finally lose, I don't know why it happened or what I could have done to prevent it.
Hints appear nearly instantly, and potions and other bonus items seem specifically designed to create combos without player input, by reducing the number of colours that might be separating groups of similar colours. These choices seem to indicate that the designers assumed we were weren't capable of playing a game of the complexity of Bejeweled, and everything needed to be done for us.
This isn't much of a game. It's just random. It's well put together, but not exactly fun in my book.