I have two lemon guava and a strawberry guava, both are pest free and are delicious, albeit a bit on the small side, but... they make up for their small size in production. I've had Ruby supreme and the fruits I got were excellent but I could not control the scale so I pulled it.
I'm awaiting the mexican cream and Thai white fruits to mature so I can't report on the taste, but so far I have not had a pest on the several I have.