Not in order of price but in terms of durability. My last order of Blue Vision Ultra is from February 2012, and yesterday the first lamp has given up the ghost. The others will probably follow shortly ... If the durability is therefore still room for improvement, even though I am aware that such high power lamps due can not keep as long as technically, we "normal" H4 lamps. But a year shelf life should be there already. Therefore 1 star deduction.
Overall conclusion: A great look for (still) a fair price!
