I converted about 8 months ago and will never go back to tubes. I used to have flats all the time as the roads around me are full of staples, glass & goat heads.
Many people say its difficult to mount tires, I don't agree with that. My mounting process was simple and I used a regular pump.
Maintenance is that simple, much simpler compared to tubes. Deflate tire, add sealant and reinflate. Once a year remove tire completely and was the old sealant out.
If you ride on roads on which you get flats, I would say go tubeless. If you only get an occasional flat here and there stay with tubes.