I worked at Autozone for 9 months and sold these... I've had a few people that used their cars spiritedly... probably even seen track time (WRX, Civic SI, MazdaSpeed3 but also sold them to many other people with no complaints) and came back a week or so later with the pads cracking and falling apart. The guy with the SI said they caught fire for a short time. These are not performance pads, But they will be great if you just use your truck for regular driving.
The only real difference between the C-Max's and the Duralast gold is that the C-max's come with a little packet of lubricant and the "brake hardware" (on some cars)... They still have the life time warranty, Just like all Duralast parts. If these fail or even regularly wear out. Just bring them back using the same phone number you bought them with (that you registered your warranty to).
With that said, I intend on using EBC yellow or green stuff brake pads when my truck needs new pads... Used EBC on my Integra and BMW and had no complaints.