Absolutely not for me.
Around the fifth time, someone (usually Kip) softly giggled, I was done. My 4-year-old daughter giggles. I might giggle when I'm really, really drunk. But otherwise, grown-ups that giggle have no place in my life. I'm sorry. There are tons of other words that can be used to convey something mirth-like (smile, laugh, grin, cackle, smirk, beam, chuckle, guffaw, snicker, howl, chortle, crow, etc.). Giggling on grown-ups seems either childish or coy and fake, and it's one of the unsexiest things I can imagine related to something happy.
Kip, in general, does not seem like a "professor" at all (and I know a lot of professors through my work in all sorts of variety). At the point of death for me (somewhere around the 25% mark), he's more of a simpering himbo, really, that puts a little to much credit on his intelligence to be actually intelligent.
If stuff like that doesn't bother you, go ahead. It sure as shit bothers me.