I also got one. There was a tag on mine when it arrived and was labeled "La Nina". I bought it as a bare root plant last year and the part circled in red was the only branch it came with.
It flushed 3 or 4 times last summer and put on more growth than other mango that I owned. No flushes during the wintertime at all but it had an enormous amount of flowers. The flowers resulted in about 30 fruits being formed which I let get to about 50 cent piece size before I cut-off the pannicles and seem to be growing very, very fast. The tree became VERY wide during that time as the weight of the flowers and the subsequent mangos bent the branches towards the ground. The tree flushed again about 2 weeks ago and seems to have gotten the message to put its energy into growth rather than fruiting now.
Probably the most anthracnose hardy mango I have growing as NONE of the leaves have any sign of damage from that. I do have a few leaves with insect damage but its minor.
The flushes have been light green in color as compared to all my other mangos which flush with a red/brown color in the leaves until the harden off.
Close inspection now is showing the tree is getting ready to flush again - i'm thinking maybe in another 2 or 3 weeks.
Lastly, the tree took the cold very well for me on the 32 degree nights but i did move the pot up under the fronch porch during those nights. On the nights it went below 30 I moved the pot indoors.
