I did a poll and nearly 30% of the people who voted said they used Sync! It's stayed around that percent the whole time too!
EDIT: Here is the poll I forgot to put this here like five times lol https://strawpoll.com/wby5A21R1yA
The combining of subscriptions i s exactly why I like liftoff as well. Used a couple other clients, but Liftoff seemed the most stable and easy for me.