Is the Rieger Hotel a good date spot?
Depends on what kind of date you're wanting. If you want a quiet table with some privacy, then no, it's not a good date spot.
Rieger is perfect for a "quiet table with some privacy." I mean, it's no dimly lit with high-backed booth seating. But, IMO it's one of the better "date spots" in the downtown area. Make sure to call in advance and make a reservation for the speak easy downstairs. atmosphere is cool an drinks are incredible. incredibly expensive too, but worth it IMO.
Well, YMMV, I guess. When I've been there, it's been loud and everyone has been pretty close to their neighbors, but it's also been full, so maybe it's quieter and more private on off-nights. It would be fine for a date...my point was just that it wouldn't be my first choice for a date if I wanted to have a more serious/intimate conversation.
Here's a photo so you can decide if it's what you're looking for.
Manifesto, on the other hand, *is* quiet and private, by design. I think you can also call Manifesto on the text line Phil listed, so you can ask about their current reservation policy. Cocktails are each about $10, but they're hand-crafted and strong and delicious.