RBK50 Guest Device Limit

I was wanting to know if guest access has a set limit for number of connected devices. I'm upgrading from an older linksys router that has a limit of 10 connected devices. Very limiting when we have a crowd at the house. I have read a total limit of 250 connected devices and a practical number much lower depending on bandwidith of service provider. But does this count guest access in the total number or does it have a separate limit?

Thanks

Doug