Update on my Swoop experience, just back yesterday, Wed to Wed flight, Hamilton to Sanford. No cancellations or major issues which was a big plus! The outgoing 7 am flight was delayed by 35 minutes, no big deal. They'd had a minor technical issue on the way down and had to wait on their flight log, and we also had to wait to have the wings de-iced due to some minor frost. Other than that, all smooth.
For the return, weather in Hamilton showed t-storms all day, which had me worried. I arrived at the airport extra early and saw that both the Swoop departure from Hamilton and my return flight were delayed by 15 minutes. I knew that any additional delay could spell disaster. Weather still showed thunderstorms, but I checked the Swoop site, and saw that our plane had departed, albeit 30 minutes late. Breathed a big sigh of relief. Long story short, due to the later delay in boarding, and then a further onboard delay because there was an issue with the passenger manifest, we were up about 90 minutes late. But considering recent cancellations, I'll take that anytime.
Having said that, although I enjoyed being back at Sanford airport, I doubt I'll do Swoop again, at least to Florida. I'm back to Southwest next month, and will probably consider Allegiant out of Niagara Falls later in the year. The $180 price tag to park for 7 days at Hamilton was pretty much equal to my return ticket to Florida. Not sure when Hamilton jacked their rates up that high, but that's more than Toronto, Buffalo, etc., and by far. Still, I'm glad I gave it a try.