It should be pretty accurate - high level data sites are not always going to be perfect, but should always be directionally correct and AirDNA has a pretty strong track record. 

That's not exactly an up and coming area -- I'd research who built them - can likely find that by going to the SG County Recorded Docs site or by seeing who pulled the permits during const -- Wichita has been on a duplex building boom -- look at the tax value -- They probably have that or less in it on the build - I also doubt they were built to be quality long term -- things such as the trim/cabinets etc -- they all look like the cheapest stuff a guy could buy - if the cabinets aren't oak and there is MDF or pine trim and pre-hung doors with engineered wood jams I'd run.  2-3 yrs ago for $180k -205 or so you could buy duplexes in Maize, Kechi, Valley center all day to builders that were selling them off to investors - not worth that in that area.

Currently have a duplex I’ve been in 3 yearsMortgage 3.65% pmt $850Tenant pays $875Heloc $30k——monthly $291The issue I am running into isRates are so high right now and it’s a lot harder to find another that will cover full mortgage.Does it make sense to leave somewhere that it is full covered to go to one that is not?

Flippers - I'm advising clients to pass on deals where DOM are high across the board.

. -- lots of factors to consider (including your personal strategy), but here are a few high level metrics to compare the most populous zip codes in HuntsvilleWelcome to drop me a message if you are interested in checking out the full report 

high cash flowing short term rental How did you find this deal and how did you negotiate it?

The payments and interest are high.

Feel free to shoot me some high level particulars and I can keep you anonymous. 

Taxes are very high and everything is super slow and bureaucratic.

Kudos to you for doing something to create a secondary income stream. there are 5 income streams in RE rentals, possibly six if you do things a certain way.The reality here is your model (buy box) is suffering from too high an entry and too high a cost of capital.