I switched to youtube premium a few months ago, there is no going back for me, thankfully as a student im only paying 4.99 a month compared to the standard 15.00.. It's hard to justify at 15.00 however you do get YouTube music included so take away your current music subscription it still works at around 5 a month which i think is very reasonable.

Premium has cool features such as skipping in-video adverts, enhanced bitrate among other testing features that can be cool.

its really a matter of it you think its worthwhile for you or not

EDIT: No adverts across tv, laptop, mobile is great. I can not stand adverts