I've had 2 years of my B3 DB3. It initially felt very hard pressed - the ball went ok, but it didn't really ping. I used through winter nets and into the season. Around July it really started to open up and flicks started going for 6, forward defences for 4 etc. I avoided using it in winter nets and its been great all summer. I intend to keep playing with it until it breaks.
My other B3, that I bought last winter as cover, is not quite there yet I used it in nets last winter and in a few games in July just to try it out - hit a few 6s but it clearly doesn't fly as well as the DB3. If I use it over this winter, I expect it to be ready for summer - and then I'll have a choice of excellent bats.