I'm not experienced with STX, but live on STT and have evaluated a number of properties in STT and STJ. The STRs almost never pencil out assuming you want them to cash flow. A few points to consider:
-airdna had some data for my zip code - 00802, it might be worth purchasing one month for STX ** caveat upon trying to validate some of the STR number, I found a number of data points were way off - USE CAUTION
-The only units I know that do better than break even are self managed and require over 75% occupancy to do so. Hurricane season is May - Nov and slow season is Aug - Oct. It is very difficult to achieve that kind of occupancy
-Hurricane insurance is 1.5 - 2% of the total home value per year... its expensive
-Electricity is currently $0.43/KWh - I think that's ~$0.10 higher than Hawaii. Guests will consume loads of power, so solar may be a shrewd investment. The payback period is very good given our high cost of power. The power company and grid is a mess - outages are frequent, so you will want some type of backup for guests. For reference a 1 bdrm condo power bill will run ~$350/mo in winter, higher in summer. Larger villas can see $3k/mo for power.
-Our property taxes are exceptionally low :)
-Mortgage rates are about 1 point higher than the mainland. My understanding is that anything with more than one kitchen will be treated as investment and require 25% down.
-STX does not have the tourist volume as STT or STJ, fewer flights, fewer ships, everything
-It will take a long time to do $200K of rehab - its on island time. Everything must be imported
-Maintenance is never ending, the salt air, tropical sun, humidity, and power surges can do a number on the property. Significant capital reserves required.
I do not want to discourage you but simply share some of the things I have learned about living/investing in the VI. Feel free to PM me if you would like to connect.
Best,
Jeff