If anyone is interested in tasting the Pearl guava, I bought some from Weee and it was not bad. I also had the Crystal seedless fruit last year and they are about the same as far as flavor and taste that I can detect. Fruits are large, but the Crystal is seedless so it has that advantage. The Pearl guava is a large fruit so even if you remove the seeds (spoon out), there is a lot of flesh to eat.
I'll post some photos of it compared to a few of my other varieties I have now, the Melon guava and Tropci Pink guava fruits.