Fortiwifi 60c - currently running firmware v4 - looking for feedback on upgrading to 5.2.4

Hey Guys

I have a Fortiwifi 60c that is still going strong. It's currently running firmware v4.0,build0672,130904 (MR3 Patch 15) which is getting long in the tooth. I've received the upgrade steps to take it to 5.2.4 (upgrade to 4.3.18 -> 5.0.12 - 5.2.4).

I'm just wondering if anyone else has upgraded their Fortiwfi 60c to from firmware v4 to  v5.2.4 and how it went.

- Did anyone have any issues with corrupted configurations after upgrading?

- Does 5.2.4 chew more resources on a Fortiwifi 60c?

- Does 5.2.4 have any stability issues running on a Fortiwifi 60c?

- Anything I should watch out for?

Interested in feedback to make sure upgrading is worth it and it goes smoothly as the device is a little old.

Kind Regards

Aaron