I really like the Hawke product line. I started with the Airmax line and it is very nice quality & durable.
I have since started using the Hawke Vantage line of scopes. My very favorite is the Hawke vantage 4-12x40 with an adjustable AO. I have this scope on my Walther LGU that is a 12.3 FPE Airgun. I have another on my TX200 that is 14.7 FPE.
My dad has a Vantage 3-9x40 on this Walther, that is a 15.0 FPE Airgun.
I have used the Hawke product line for a bit over 5 years, and the quality has been reliable. Any problems I just send it back and get a new one.