I've actually been really impressed so far. Mariota established himself early on as the best athlete of the quarterbacks, which it shocked me that he was virtually a full step faster than Marshall and Sims. Plus he has thrown with nice touch all over the field.
Even Winston has looked better than I expected. His timing and touch have been spot on. He looks fit and focused, but still reasonably loose.
Looking at this qb class, I don't see a single one with elite potential. However, I see a few that could be solid starters for a quite few years.