Let's look at the page you linked. On the top of the page it says "free GPU" and for some reason lists three GPU options of varying capacity, all three "free". But slightly below it's very much "non-free GPU" territory. Which is it? Is it free, or are you going to hit me with a bill later? And if it's free, what's the catch? The "free" stuff on the top of the page invites me to create an instance. Hmm, ok, let's see maybe I'll see the actual pricing there? Nope, it wants me to create an account, which I'm not going to do just to see how much something costs.
Might be wise to make this more visible on the pricing page.
I felt like my vision had just suddenly worsened and felt an urge to click away to a different card.
My biggest concern with google product is, it might be shut down any time when any small and medium company begins to depend on it. This is the legacy of google in which anything which cannot generate revenues like it's advertising business it's shut down. So although my team use from time to time google colab, we keep an alternative always open.
Hopefully with this 9.99/month charge it might become viable business but will not be as significant as the google's primary business of advertising, so there will always be sword at the neck of this product.