Mike,
When I think of H4s, I think of a headlight pattern being distinctly like this:
__/ __/
These Bosch ones from Bug Depot are really motorcycle lights. I could not get that crisp pattern from them and there is an annoying black spot that makes the throw somewhat non-uniform.
Now in fairness, my car has had its nose impacted and due to to the quality of repairs, it was challenging to get the headlamps properly aligned and that might contribute to the non-even distribution. But by shimming up the buckets and enlarging the holes that buckets mount in I was able to get a reasonable alignment and a more uniform distribution.
On a scale of 1-10, I'd rate these as 6-7 vs. stock at 3-5. So, they are a reasonably cheap upgrade, but not necessarily the best. But, that's just my experience and possibly others can chime in.
If you're interested, I'd be willing to post some pics of the light pattern put out by these lamps.
Byas