How good is Latios?
Good cp but poor moves from what i can tell. It would seem to me that it is outclasses as a dragon type by Raquaza, Salamance, and Dragonite.
It is not double weak to ice like them but has a worse charge move.
Will it have any pull with double psychic moves?
Answers
As a psychic attacker, it should be pretty solid, given that a level 40 Espeon with perfect IVs tops out at CP 3000, and a level 29.5 Latios with all 13s for IVs has a CP of 3020. That's way less dust, and less candy (admittedly rare candy) to get there. Sure, ZH/P isn't nearly as good as C/FS, but I'd argue that even with a poor moveset and slightly lower attack, the fact that Latios is way tankier than Espeon or Alakazam slots it nicely into the second position after Mewtwo as a psychic attacker, because of it's strong CP.
Lugia: 193 base attack
Latios: 268 base attack
Future Sight from L40 Lugia on Machamp raid boss: 129 damage
Psychic from L40 Latios on Machamp raid boss: 146 damage
Psychic is bad, yes, but Future Sight isn't exactly a stellar move and far from being able to overcome a massive difference of 75 base attack stat.
Latios is the 4th best DPS psychic type and has a solid 14% DPS lead on ES/FS Lugia judging by time to win against Machamp.
Latios hits a few points harder than dragonite, and had twenty points of stamina turned into defense, with a few points extra defense thrown in. He also has the once coveted DB/DC moveset, which I never got before it became legacy. I think that if you don't dodge, DT/O is better, but maybe it is good to keep this option around in case the game changes in ways that make dodging important, again.