I bit the bullet and went for the S9 Ultra/keyboard cover/screen protector. First impressions are: the Tablet is impressive in it's quality of build, screen and size. Extremely thin and looks classy. Imho, you don't need a separate keyboard unless productivity with typing is paramount and you want to want to keep the screen clean/have more real estate for multiple windows.
It's a little to large to hold in ones hands for long periods like smaller tablets. Stand is paramount. The connection/downloads between my Samsung phone and the tablet was a peace of cake. She runs super fast and snappy.
Haven't had much time to use it but will report back as I get to know her
Bought on the £200 sale deal with a further 5% discount through the Samsung app and splashed out on the 512gig version with savings accrued. I went for Sunday delivery (I placed the order on the Saturday) with DPD which was tracked/fast and efficient.