I was told I had a burnt exhaust valve in # 4 cylinder/check engine light on.

What is your question?

The shop has had my vehicle for a month, is this repair that difficult and how much should it cost? The check engine light had been on when I had it checked. The car doesn't even have 90,000 miles on it! This is going to be expensive? I expected more from a Subaru! Extremely disappointing!!! I did not take to a dealer, it would cost me twice as much to have fixed.