I have the Mustang seat on my F6B and love it. If you like firm seats, you will be a fan. If you like soft seats, you will likely not be a fan. I like to take multi-day rides. The softer seats - to me - are extremely uncomfortable after the first day. The recovery time seems to equal the previous day's ride. The firmer seats - such as the Mustang and Corbin - may feel uncomfortable by the end of a long day but the recovery time is hours not days. These are definitely just my experiences. Yours will almost certainly be different.
Seats are like windshields. It's a personal preference. We sometimes have to try a few options before finding what suits us. It can be expensive, but I have to admit I love buying accessories for the bike!!