Eish. It's been a while (my mother in law moved over towards Somerset West). But, I'd recommend Lanzerac or Delaire. I'd bet that they're going for more than £150 nowadays. Both definitely have excellent restaurants on site and I've never spent a night there that wasn't beyond enjoyable. That said, Stellenbosch has a wide range of affordable hotels there's at least one Protea that's more mid-priced (IMO). Don't know if it has a pool.

If you're driving, I've always always enjoyed Wijnhuis restaurant
https://www.wijnhuis.co.za/
and Tokara
https://www.tokara.com/tokara-wine-e...ra-restaurant/