I've seen the Jury's in the republic, so I know they are not luxury! This is purely a price decision. But I'm a little nervous since that last two reviews on Trip Advisor are really really bad.
I'm also looking at the Premier Inn and the Fitzwilliam, both of which get much better reviews and are close to the bus station also.
Have you been to Belfast? If so, I'd love to see your impressions of it. I really enjoy your detailed trip reports.