gutter install - spike or hidden hangers???
I have recently received two estimates for gutter installation. I live in Florida, so no need to worry about snow/ice, but have plenty of rain. Company A uses hidden hangers with a 3 year craftsman/10 year product warranty. Company B uses spikes and has a 1 year craftsman/20 year product warranty. Both companies are using 6" seamless .027 gauge aluminum. According to Company B, they have found that over time, the spikes have a better hold (less sag) than the hidden hangers. They have been in business for 21 years. My initial impression was that they must be confident in using spikes as they provide a better warranty than Company A.
Thoughts on using hidden hangers vs. spikes and vice versa? Any experience with hidden hangers failing over time? Is the advantage of hidden hangers only aesthetics?
(I can sacrifice the look of spikes if it means a longer lasting product with no sagging).
Thank you in advance for your responses!