Sort of true, sort of not.

• Supercharging from ~0% to 80% can take 30 minutes, yes. But I usually arrive at the supercharger with 20-30% battery and only sit there for 10-15 minutes until I get up to 60-80%. You only need enough charge to get to the next supercharger on your journey. Ten minutes is enough time to stretch your legs or eat a burger. I'm rarely just waiting for the car.
• Supercharging from 80% to 100% can take another 30 minutes. I never do that. Never need the range.
• About 10 hours to charge at home would be true if you were at 0% and charged to 100%. The home chargers are limited to ~10KW with a 220v 50amp circuit. Again, this is never a problem. During a typical day, I use 10-30% of range. Some days I forget to charge, it doesn't matter! More importantly, the car charges overnight while I am sleeping. I don't care how long it takes, it's ready every morning. Imagine if your gas car got fueled up every night and had a full tank of gas every morning!
• "They" don't like you running the battery lower than 20% is just advice. It's like I tell my kids, when the gas tank is below 1/4, drive to a gas station so you don't get stranded. You can go below 20% whenever you like. You're just running closer to empty. Why? Just pull over and supercharge for a few minutes. The car has actual reserves below 0% that you cannot use that protect the batteries, so you can absolutely run from 0% to 100% to 0% over and over again if you like living on the edge.
• EV vehicles are convenient. Hands down, the best car I've owned. I don't think it has been in for the annual service in three years. No oil changes, no air filter, no spark plugs, no timing belt... Over 80 thousand miles on the original brake... PADS! I only change tires. The "tank" is 80-90% full every morning like some magical fairy took it to the gas station while I was sleeping. The traction control in snow and ice (and heavy rain) is the best I've ever driven.
• It is the best accelerating car I've owned. My Corvette(s) can't hook up quickly enough to beat the EV launch.

Caveats:

• I have the money to afford a high end Tesla--even the low end Teslas are not cheap or even affordable--so I'm exposed to the "best" EV experience available.
• The early years were rough with lots of component failures. Tesla fixed everything under warranty and provided a loaner vehicle. I paid $4500 for an extra four years of warranty because I expect things to keep breaking, but for the past three years... nothing has gone wrong.
• Despite the half-truths about the downsides of charging, range, cold-weather (requires 10% more range), etc. my wife doesn't want any other car. Her next car will be a Tesla. She would really like a better car, but we look at Porche, Mercedes, nothing below $200k comes close.