What I am personally interested in is this:
What is it in the actual gameplay of BLU that makes people a fan of the class?
I get the "learn stuff from enemies" part appeals to collectors but the resulting gameplay sounds quite ... dull. You just spam all abilities at your disposal, Guild Wars 2 style.
Can a BLU even get some sort of flow like BLM or SMN, making the class feel round / mandating player skill?