咁好呀
That's great.

Cantonese Sentence Breakdown

gam3
so (Cantonese)
Mandarin equivalent: 这样zhèyàng [这样], like this
hou3
to like
to love
to be fond of
to be liable to
to be likely to
haa1
(particle equivalent to 啊 after a vowel, expressing surprise or doubt)