First HDR attempt

[Dubbs5050]

After seeing a lot of HDR imaging recently, I decided to see how it works. Obviously, here I took it to the extreme on purpose. I dont like how it there seems to be a "glow" around every object, but other than that, I do like the HDR affect. I personally don't think it works for these photos, but I just wanted to test it out.

My question is, when is HDR useful? Is it one of those things that I just have to try to see if it works for the particular image, or are there certain lighting situations that call for HDR?

Thanks