I loved Miami for work and play. The city feels loud and colorful. Music and food from Cuba and the Caribbean are everywhere. It is hot and sunny most days. Summers are humid and there is hurricane season. For some, that weather will be amazing. For others, too much heat.
Most travellers enjoy fast internet here. Coffee shops and lots of coworking spots make remote work easy. It is not cheap. Housing can be pricey, but you can find cheaper rooms in neighborhoods like Little Havana or North Beach.
Things to do are endless. I once watched a pickup beach volleyball game at South Beach while people answered emails from the sand. Wynwood has huge murals and good cafes to work from. Little Havana has loud domino games on Sundays and cheap snacks. There is a growing nomad community and monthly meetups. Arguably not the calmest city, but if you want sun, culture, and reliable Wi Fi, Miami is hard to beat.