Interior Protectant Help

Does anyone have any opinions on the best interior protectant to use.
I've just been using Armor All because it seems to be the most popular brand, but recently I've heard some bad stories about it.

I travel between CA & AZ alot and with the summer heat approaching I want to make sure nothing cracks or fades.

Thanks

i use "Son of a Gun" protectant.

i have been using it for areound two years now; and haven't had any problems

if you do try it, use a sponge, not a towel or napkin to apply it.