The shinies look cool. Zygarde looks absolutely awesome...
On the other hand... Mega Lati@s have got to be the most unnecessary Megas ever, they're just so pointless... Their stat boosts are not that great, specially because they already have Soul Dew, which is much better, particularly for Latios, its physical movepool is not that good to abuse the attack boost and DD... The worst part about them is the coloration... Making them look pratically identical is simply... disappointing, to say the least... I'd rather have Mega Evos for other pokémon like it was said before...
On the other hand... Mega Lati@s have got to be the most unnecessary Megas ever, they're just so pointless... Their stat boosts are not that great, specially because they already have Soul Dew, which is much better, particularly for Latios, its physical movepool is not that good to abuse the attack boost and DD... The worst part about them is the coloration... Making them look pratically identical is simply... disappointing, to say the least... I'd rather have Mega Evos for other pokémon like it was said before...