No, optically they should not be far better than Hella Bi-Xenon that currently exist on many new BMW, Audi etc. Those projector units are NOT weatherproof nor adjustable as is.
The main thing Hella 90mm ECE offers is a wheather proof front and rear, and comes with easily mounted adjustment screws. Making a setup with a mount plate and a cosmetical front plate is not that much work, if u find it will look cosmethically good on ur vehicle. An exampe of this on the Golf IV: (There are many additional parts here, but this kit has autolevelling and high pressure clean system):