I have the VM Pro 453 and I have to say it is the best 19" flat CRT monitor I have ever had or seen. It is well built and although it is now coming up to 2 years old I have never had the slightest problem with it.
Iiyama are one of the best monitor manufacturers around, plus they update their drivers on their website on a regular basis.
I wanted a longer DVI cable and phoned them and I was given the phone number of another company who could supply the longer cable cheaper. Got it within days.
I'd have no hesitation of recommending the company.
All the best