I recently purchased a D-Lite. I had a little bit of confusion when first setting it up. Most of the confusion was the Rocket site I use as my provider. These items were quickly addressed and fixed with help from these forums. I had no issues that were directly attributed to the D-Lite itself. The price was VERY VERY reasonable. The unit comes as a complete package, with all needed components for operation. I only have a 1080 TV, but the picture from the D-Lite is FANTASTIC. I think it was one of my better decisions. If I was to answer directly to your question, I would say the D-Lite is a great unit, and I have a feeling I will have many years of quality service from it.
i would go with the T2 if you are interested in kodi also and have a few extra $,i have never been disapointed in picture quality of any of the dreamlinks.