No, works like a charm, better than my Dell did in fact, but without the wide screen naturally.
This does have DVI too though so the MKII will be used with it for sure when it arrives! 
That is a nice find. I agree the the Amiga is best on a 4:3 monitor. The Dell monitor video scaler tended to make some fonts hard to read... Indivision is much better. There is also a 1280 x 1024 monitor driver for Indivision AGA

That will probably look great as it is the monitors native resolution.
If the DVI works, and like I said, I tried it on several Samsung on DVI or HDMI and it worked on all real monitors. It it did not work one one Samsung HDTV....