The Veil Guy stopped by our offices a couple of weeks ago on his way to Atlanta. While he was here, he picked up a few radar detectors to test during his return trip. Among the models he chose were the Whistler Pro 78 and the Whistler XTR-690.

Over the weekend, he posted a very detailed review of these two models. Here's a quote:

In any event, it is my opinion that these new Whistlers represent two of the greatest values in radar detector ownership, today.
If it is your desire to have a full-featured radar detector which provides good protection against police radar, particularly against Ka-band, and are budget minded, you need not look further than either the Whistler Pro-78 or Whistler XTR-690.

Please check out the entire review, it is definitely the most in-depth look at these Whistler models to date.