I've noticed that over past few days the B37 has had a bit of increased service. Usually theres about 5 buses out during the rush hours. For the past few days there's been 6/7 buses during the rush.
The B37 sure is pretty unreliable, but It's a fast local route. Not that busy of a route so you'd probably be skipping more stops than stopping at them. B/O's tend to leave the terminals together at times, which tends to happen a lot within MTA's buses.