dsidle61,
I have a 2015 pro 170 and I'm very happy with it. It is definitely a lot more boat than the pro 160 and well worth the extra money. In addition to having a lot more storage it also has a wider beam and is quite stable. I have the 40hp and fully loaded with 2 men it hits a comfortable 32mph. It's a good boat and I have no regrets.
Good luck with your decision.