Fitted these to my Iveco 35S12 van - outstanding results. The lights were already pretty good - now they are amazing. Much clearer view ahead, including the peripheral view. Dipped headlights make a distinct pattern in early morning / early evening light, just where you're not sure if the lights are making a difference. These ones do - a worthwhile safety edge.
I put a set of these in my main beam (H1 bulb) and dipped beam (H7 bulb) lights - both are excellent. I left in the standard H1s for the fog lights, since you don't really want really bright light in the mist (which we have quite a lot of here in the west coast of Scotland...). The beam from the Ultima bulbs is significantly brighter and more towards the blue end of the spectrum than the standard bulbs.
Can't vouch for reliability as yet, since the bulbs have only been in a fortnight. However, I fitted a set of the previous generation Ring Xenon Max bulbs to my wife's car a year ago, and they have given no problems whatever. She is delighted with the improvement over the standard bulbs - she had been complaining that the headlights were dim (hint - I need a new car...). Quite pleased with that one!
For fifteen quid a pair, a good buy. You'll not regret fitting these.