Up front. I'm a 68 year old Zoino Zealot, but have tried many of the upscale (and other) products over the years from the old yellow can Simonize to Zymol. Currently use the Zaino line for all my cars listed below since I don't mind washing, but am otherwise lazy and prefer to do a full detail as infrequently as possible. Other than what you've already read, the secret to any product's appearance is in the preparation of the finish, and that's where almost all the "elbow grease" is needed. After that investment of time and energy, I want a lasting protection and deep shine. For my time, energy, and bucks, Zaino's products do the job. All of my rides listed below are garaged when not being driven, so by using Zaino's qd's (Z-6 and Z-8), my cars still look great and bead nicely after a year. That way I get to keep up my lawn, garden, play on the computer, sing in 2 barbershop choruses and a quartet, exercise, read, watch old movies, etc.
Try Zoino, I think you'll like the appearance and durability.