I have stayed in many SpringHill Suites and to me they are all the same (not a good or bad thing). They are all spacious suites with the same amenities, and include a free breakfast, but they are not too over the top either.
I have stayed at all 3 Mariott properties in Pigeon Forge/Gatlinsburg, and thought this one was ok.
Pros: Definitely a very family friendly place (because of the room size and lower cost). I have never had a cleanliness complaint at a SpringHill Suites either as the rooms are always very 'green' and 'clean'. The hotel was very crowded the weekend I was there, and the staff really hustled to make sure the breakfast items were being replenished. Also, you can tell it is a new hotel as the lobby and rooms look fresh.
Cons: The pool area was nice, but small, and too many young kids jumping around like animals for anyone else to use it. Also, as with many Spring Hill Suites, but when I walked into my room, it smelled like feet. Finally, this hotel has NO balconies. Yes, I knew that going in, but when you are at Pigeon forge you want to be outside and use a balcony. Especially as a category 6 hotel I would expect this.
A nice, clean hotel, honestly somewhere I would more gladly spend a business trip. However, I would probably stay somewhere else next time I can to the Smokies.