Got my spousal visa this morning

Longest, most stressful wait of my life, but so glad the hard work and patience paid off. Things are very busy in summer (which I didn't know before applying), and if you're considering upgrading to priority, do it. It's a lot of money but if I didn't do it I'd still be a nervous, waiting wreck. It's worth the peace of mind and being able to quickly get to the UK to be with your loved one. Good luck to everyone still waiting!
Double checking my visa, it states that it's valid from 7/22/15-7/22/20. I thought spousal visas were only valid for 2 1/2 years?
Here is my detailed timeline, in case it helps anyone. UKVI made a silly mistake with my package earlier this month, so my timeline is probably longer than most

:
5/28/15 Applied online
6/2/15 Biometrics, mailed package to husband in England for the addition of his documents
6/8/15 Husband forwarded package to Sheffield
6/10/15 Package arrived in Sheffield per Royal Mail tracking. No confirmation email
7/3/15 Package incorrectly mailed back to husband (appeared as though the person sorting through the packages saw that mine came from within the UK, and assumed I meant to apply for FLR so it was sent back)
7/7/15 UKVI acknowledged their error and advised husband to resend package
7/9/15 Package arrived (again....) in Sheffield per RM tracking
7/11/15 Confirmation email
7/19/15 Priority upgrade
7/20/15 Emailed Sheffield my priority receipt. No confirmation of upgrade
7/27/15 Decision made email
7/29/15 Spousal visa arrived via UPS