Currently I have 4 Draytek AP700 Air-stations that open ( no encryption or authorization ) but an untangle Server ( Desktop PC ) that does a Captive Portal Page Authorization to allow traffic to the current Router/Gateway Draytek Vigor3900.
All that is required is a nice looking Captive Portal Page / Custom and each room has its own password which can allow multiple devices with a 24 hour time limit till next time they have to login viua the Captive Portal page.
I was thinking the RouterOS Cloud Core Router CCR1036-12G-4s would then replace both the Untangle server ( which is a huge power hog ) and the Draytek Vigor3900
Additional Bonus would be ADSL bonding as I have 3 ADSL2+ lines ( to far for VDSL )