Yes I've heard the HDT-1 model. A friend bought one, and lent it to me for a few days so I could hear it with the radio reception where I live.
I was impressed at how good it was at receiving weak analog FM signals. It was better at that than the FM tuners I have. I'd give it an
A for that.
What about the sound quality of HD (digital) radio? On the HDT-1, HD radio sounds noticeably better than analog FM, but I wouldn't say that it is as good as a well-recorded CD. The variety of material broadcast in this format where I live is impressive (I don't know what you'll find where you are), but it can have a somewhat compressed or limited sound. With some music, this is noticeable, and with other material, it is not bad at all. For quality of HD radio sound, I’d give the HDT-1 a
B. Overall, the HDT-1 gets a
A-/B+.
So, I thought it was a good product overall and is worth the price, but remember this depends on your over-the-air radio reception where you live. Location, elevation, and antenna all have an effect.
Try
this link to find what stations are available in HD where you are.