Sona, Yes i do have fun playing her and i think a lot of people do too

Today is the second day on the patch i love the new sona, yes you have to play a bit riskier, but its not that bad as long as you know when a safe time it is to move up, IE enemy cool downs your flash, I love what she brings to the table in team fights and in skirmishing to the lane in all honesty i think some of her numbers might need to be tuned down, I'll link a recent ranked game where i played sona and thought i did pretty well, building mostly supp items.

Her q still has a tremendous amount poke, and her passive almost nami like auto attck buff does a decent amount of dmg even early, if you and your adc can time it right you can easily half health or do more dmg to someone at one, depending on runes masteries, and champ.

Her w is a little weak early but can still save your adc and turn a fight with the upfront shield, not to mention percent missing health buff, and combined with ardent censer, with your positioning correctly gives your entire team a 25% attck speed buff, and if not your entire team at least 2, with the long range heal, tht towards the end game easily heals for about 300+.

Her e while i think is still useless early game does a lot in the late game when it comes to kiting engaging or even positioning for the perfect crescendo, not to mention the slow on the power chord to catch someone out.

her ult is basically the same as her old just easier to read and therefore in my opinion easier to hit, not to mention with each rank it gives a flat buff to all her other abilities, making her scaling even better.

there might be a few problems with her abilities on an individual level, but if looked at as whole the utility she brings not to mention the dmg even in the late game especially if you build ap items easily makes her a great champ, at least in my elo :D