Sorry for the delayed response. Every room does have a jetted tub except the room with 2 queen beds.
No, not every room has a spa. There are even differences between the rooms that do. Some are heart shaped and some are larger and rectangular. The King Suites are the best and resemble a fireside lodge interior decor. Call the front desk and they can explain the differences in rooms to you. This hotel is a niche destination in itself and the walled mirrors and spas are part of its quirkiness and charms. If it wasn't for this place you'd be paying around $300+ for a room in Tahoe with a spa in the room.
Some of the rooms have a Jacuzzi. I will recommend you call the hotel and ask them which ones have it. Just like all hotels some rooms have it and others don't.
I dio not believe every room does. You have to book that room specifically.
Our room was a King and it had the rectangular shaped Jaccuzzi tha was so nice and big. Next to it is a large tiled area with a dual head shower for after you exit the tub. The place is great and we loved every aspect of it from the Jacuzzi to the quaint sitting Lobby to the fire pits and swinging bench out front. You will not be disappointed with this place!
I can't speak to every room but I'm pretty sure ALL have one or the other BECAUSE it is the old Fantasy Inn - a honeymoon destination place that was revamped within the past few years. That said? My room had the HUGE jacuzzi and WALLED mirrors behind the bed - so though they've updated the hotel? They haven't "taken care of business" in removal of some of this "honeymoon stuff" (if you will) It is a GREAT location though and nice place to stay.
Get an answer from Postmarc Hotel and Spa Suites staff and past guests.