Come on, Kup, there are disappointments to the stories but they're still pretty decent. I've seen bits of Cybertron and Armada and I think those are far more cringeworthy and I can't be bothered following those. The dialogue is also second rate but here I think it's far better controlled.
Yes the cringeworthiness factor can be high but I think the caricatures are good here b/c I feel each character has a voice. Bulkhead may be dumb but he serves his purpose to the young audience. Bumblebee is annoying and immature but that's cool too. I think you need that rather than everyone's favourite little bot. Making him a little snot actually makes the team dynamics work better. I could keep going but what I think is that between the 5, I think they synch together far better. They're bigger than the sum of their parts. They are strongest when they bounce off each other imo.
I think more of the "Earth" elements birthdays, Halloween in themselves are fine. I think it's good to connect with kids even though they gnarl at me.
Overall, you don't have a perfect cartoon but I think for there is still a charm to it with a small core cast allowing us to warm to the characters. It's just that key that keeps making everything trivial that holds it down for me.