No experience with the one you posted personally but seen quite a few already which are similar, if not the same really. Concept is the same anyway, 50~60w, etc etc.
They will light up well, no waiting like xenon, energy efficient as you'd expect from LED etc etc. They do illuminate quite effectively when used with a reflector. Personally I don't like their temp (color) but everybody has different taste (sort of a cat-clinic ceiling lighting bright white style).
They're biggest issue if you ask me is durability vs their high price. Although equipped with a heavy duty air cooling system, all of these similar product seems to have failed prematurely. To give you an idea; they are not sold by car lighting experts here locally anymore. You'll only find them in the little no-name shops... those who don't necessarily offer customer service
Second issue is of course the heat. They do get very (very) hot beware. As hot if not more than your stock 55w halogen. That said; do install wisely.