Some zones are useless :x but you can use shards. Hope they fix the shard drop balance, everyone has billion act 1 shards and 2 act 5 shards.
And for people who do not have time to play 3-4 hours, they either get no latent ever or have to park game (where you can get dc/crash and then it's lost).
thats why i use them just to farm tz andy when its not tz andy