Your refresher will be " piece of cake", you will feel like you never had a break after a couple of dives.Looking forward to going through a refresher while my kids get certified!
I loved teaching teaching people doing a refresher, very few if any had a problem, if they did it was little things that were sorted out quick.
Example: Some have never used a SMB, knew what it was, but never used.
I bet there is a lot of 'resort only, one a year' divers who would be in a tangled mess if they had to use a SMB, just saying.