1) Red Kat is a good company and they do good business so go for it if you want to try the company
2) I think you are refering to a Supplement for stamina and sexually vitality...right? If so there are a few supplements that are better you can get Tribulis T, and or some yohimbi, and ZMA works very good at bringing back sex drive. There are a few other supplments out there but I have not used them.
3) As stated above by the others on here try doing another post cycle therapy (pct) with Heavy Clomid and/or Nolva together. I believe that this is what you should try first and get the cannon balls back up and running....this should make you feel better mentally and physically.
My 2cc's