Couple of points spring to mind
The Wassmer built 120's if I recall have one fuel tank under the rear parcel shelf. If yours is like this (unlike the SAN built 117's with 2) watch the weight and balance if touring and camping. They can easily get a bit tail heavy.
Also check the trailing edge of the wing. There are drain holes that easily get blocked if operating off wet grass.
In extreme cases rot can occur and I've seen delamination and worse on some.
Does the -A signify airbrakes.? These help with controlling the approach but speak to an instructor about the difference between them and more usual flaps. I've seen a novice get very out of shape on the approach as a result of not understanding their effect on lift.
I'm sure there's more but its late and it was a long time ago. The main thing to remember is that the design is fantastic and will give many hours of pleasure in the air.
Don't though do what I did. Sell it. You'll regret it
Sir George Cayley