Author is fast to respond if you email him. I had an issue of getting an error earlier when I clicked on the nofications tab. Within 45minutes there was another release on the market.
What I didn't like about babbler is when I commented it took forever for the comment to actually show up. Bloo its nearly instant for me.
I don't care for the notifications anyways so I'm rather in hog heaven since I get them via email anyways.
Babbler has been out for months and Bloo well has been out less than a day so I'm willing to cut the guy some slack and hes already put out one bug fix release in the first day so that says a lot to me.