I loved it. I'm not playing it anymore ( Wanted to try the DS 2 re-release ), but I played it obsessively for a long time.
I disagree with most of your points.
Most of your statements come to a matter of taste, while some of the others seem to be unfair notions. There is certainly more boss variety that 3 types and all weapons are valid. Gun and magic builds are possible, but I'd agree that they could use some expanding. Farming for bloodvials is a non-issue as you move forward ( I always had them maxed out, you just need to remember to spend your blood echos surplus)
I'll say this tho, it sure does play a LOT better than DS2. Content-wise I'm still unsure. I think I'd like to say I definitely want more content for BB and i could qualify it as a negative; but I have some faith that they will expand on it and revitalize it with future DLC. Tho the possibility that they miss the mark on the things they need to expand upon exists.