I'm a big HIMYM fan, I was skeptical about a spin off at first but Hillary Duff has wide range of acting abilities and decided it was 100% worth trying out.
I felt like they dove too fast into each character, leaving little to no room for character development.
I also felt their dialog was all over the generational references. HIMYM was able to pull it off because they had their characters stick to references they group up with and then introduced the newer slang & references. The beginning of episode 2's dialog in the kitchen was confusing to me.
That all being said, I hope the producers, directors and writers get together to create an amazing spin off series. They have alot of room for improvement and can really make this show its own. I'm not giving up yet, but so far it's a rip.