Some may cast a negative shadow on Turbotax & other tax filing companies because their existence and lobbying has "prevented" the IRS from implementing a free e-file service of it's own. This is either a good or bad thing depending on how you look at it.
No, TurboTax has the reputation of being awesomeness. They have extremely high retention and a very high viral-spread rate because the software works so well to take taxes and make them simple.
Note: I've used turbotax.com and it's always worked well, so maybe that's a positive connection.