Yes, if it is in the repo you can use it. It may bring in a number of other files making for a larger than expected install but you should have no problem other than that.
I can't really give you good advice as to what program to use however. I don't use a PIM very often so don't have a good feel for the better ones. I am sure that someone else will chime in and make some recommendations that will help you however.
Welcome to Mint.