Mak, no harm getting a second opinion. If you're thinking of paying $7K for something, I'd want to be absolutely sure that it was money well spent - 'unhappy' is not how I'd want to be at the end of it!

I had braces, clear on top, metal on bottom (that you couldn't see), extensive dental work and an implant done and I am very, very happy with the result. It cost me about $12K all up, spread over about four to five years. I saw several different dentists to make sure I was satisfied it was the way to go and I enquired about the place as to the reputation of the specialists I was using within the industry.