What could have been done better?

[Steven Lewis]

This was my first investment property. At 25 years old, I did my first investment with 2 years of real estate experience. Knock on wood, I am doing well with it but wanted to share my numbers and see if I could get some constructive criticism for my next investment purchase. 

This is a 2 bed, 2 bath condo in New Jersey.

Purchase price: $189,000 all cash
Taxes: $334/month ($4000/yr) 
Insurance: $19/month ($219/yr)
Association: $351/month
Rent: $1600/month

I've seen many formulas to calculate whether a deal is good or not. But since the property is already purchased, looking to know after the fact if this is a good deal, and if not, what could have been done better?