I have the Leica HD-B 2200 rangefinding binos.
The built in ballistics is a great feature. I range my target, and it gives me my turret adjustments instantly.
I had Swarovskis. Did not like the rangefinding feature. It struggled to range out to 800, and effective range was around 500. Leica HD-B is about twice that (plus the Leicas have built in ballistics.)
Optical quality of the HD-B's is superb, every bit as good as the Swaros.
I do have a few complaints, mostly relating to the ballistics software implementation: The HD-B uses micro-SD cards to store your custom ballistics data. It's a pain in the butt to switch these out, and you have to switch the card when you want to change rifles. This isn't really an issue when hunting, but for range practice, it's a hassle.
The software interface is web based and really poorly implemented. There is no convenient way to save ballistics profiles or make true up adjustments to your drop charts. It can be done, but it's really clunky and inelegant.
Still, it's nice to not have to carry a separate range finder, and it's great to have the ballistics, (along with pressure and temperature and angle) all calculated with a single piece of gear.