I flew "JetSelect" on Konnect last week. I believe the food is the same as the domestic Y meals on normal Jet flights, rather than the packaged stuff that they sell on normal Konnect filghts. It's definitely not the full service that you get on proper Premiere flights.

The seat is the same as on the old domestic Premiere planes, with perhaps slightly tighter pitch. Overall, I wasn't too impressed, and certainly wouldn't have paid the full price for the seat (I upgraded).