I've been with WRZHost for roughly a week now and so far I can't really say anything about them.
Their contact persons are very friendly and are usually quick at responding too.
I've registered a domain with them and ordered a shared hosting offer and had no troubles so far whatsoever.

A few days later I ordered a VPS. It was ready to use after 2 days and they actually shifted the due-date by 2 days - this is a very nice service if you ask me.
The performance was just what I expected and the download speeds even went up to 20-30 MB/s for a minute or two occasionally, and this is on a 100 mbps VPS!?

Unfortunately I had to stop using their VPS service already due to some misunderstandings/misinformation from the official thread.
(Sadly no unmetered plans for Netherlands/Germany Windows VPS for now)

That was my experience so far with WRZHost. They give you the performance and speed you'd expect, even if it's a little more pricey than other services - but you won't regret it