I agree with all posters.
Connecting between airlines isn't as much of a problem. Connecting ON TO an int'l airline leaving from a different terminal, with once a day service is a misconnect waiting to happen.
Not to mention no luggage interlining, and the fact that WOW often will not print a boarding pass at online checkin in favor of "see airport checkin agent" page.
WOW offers no rebooking for missed flights, and I'm sure their fares at t-24 hours are atrocious.