We enjoyed Gulf Hbr. Stayed only 10d. At this time of year, it was very slow, almost deserted. Therefore very quiet, sedate. Excellent private beach, many magnificent homes but a wide range of type and quality. Waterways very top notch, deep draft, direct access to Gulf. From a buyers POV, a good controlled (more or less) environment, probably easy to lock up and leave with confidence. I expect summer rentals might have a level of competition just by the number that seem available. Probably a good time to buy - alot on the market.
Drove around Hudson and Tarpon Springs, and New Port Richey - there are many, many waterfront opportunities.
Good Luck.