Real estate had a major boom during the last 5 years. Appreciation of 525K to 600K (14.3%) over the past 5 years is kind of on the lower end. I'm ok with lower cash flow as long as you get the appreciation. You seem to be on the lower end for cash flow and appreciation. It's a good start, but there is room for improvement.
I go against the grain a little on this forum. I put a premium on location. As a result, I get slightly lower cash flow, but it gets counter balanced with slightly higher appreciation.
Rental #1 (Fort Collins, CO)
Purchase price of 182K + 10K of repairs in 2007
Current rent of $2,500/month
Appreciation since 2015 of 275K to 390K (41.8%)
Rental #2 (Fort Myers, FL)
Purchase price of 95K + 16K of repairs in 2012
Current rent of $1850/month
Appreciation since 2015 of 170K to 250K (47.1%)
Rental #3 (Koloa, HI)
Purchase price of 603K + 57K of repairs in June 2018
Current rent of $4,500/month
Appreciation since June 2018 660K to 815K (23.5%)
I did buy foreclosures and fixed them up, so my appreciation might be a little higher than normal