We recently stayed here with our 3 year old. So three of us in total.
The beds were very comfy (which made getting out of them very difficult some mornings!), breakfast was tasty, the rooms were well furnished and clean, the bathroom was nice. Our room had two queen sized beds and plenty of pillows.
The staff were all polite and were happy to help how they can. The free Wifi was great, but you could certainly tell when lots of people were using it. Generally though it was great for surfing the web, checking emails, etc.
If you're staying in Windsor I'd recommend this hotel.