I really need to watch these two series. Gotta float that idea up with jingle.son to see if he's up for it. If not, Ima gonna incorporate it into my morning stationary bike rides.
I don't think you'd regret the investment. There are 133 total episodes (including the 12 new S7 Ones)....I'll stick with my ratio that 85% of them are pretty fun watches. There are some outliers in there that are boring, typically when they are centered around characters other than Anakin, Obi Wan and Ahsoka. But, being that you're not having to wait a week in between them and have the option to just 'skip' the ones that are boring you.....it should be no big deal.
As Bosk said....S1 is a mixed bag but the show starts to find it's footing in S2 and by the time S2 is over it's in a pretty good groove. Personally, I'd skip the 'Clone Wars' movie that led into the series. It's 'ok' but it's not necessary to watch to be able to make sense of the series.
If/when you complete that and get to Rebels....it's a really fun watch also. It's neat to watch Ezra go from a bratty little D-Bag orphan to a pretty powerful Jedi. Both series introduce some really cool characters that would have been neat to see in live action. Maybe some of them still might make it into live action, who knows?