It is convenient if most of the coins you hold can be stored within a single wallet which is trusted and reliable. I have seen that hodler wallet ran a signature campaign here but I still prefer to stay with ledger nano s.
i prefare to store all my important coins in one wallet, this way i can easy control and aware of any activities, then i have wallets to participate in campaigns and stuff like that, it is not very safe to expose your major wallet that hodls all important funds, that may likely result to been attack, am using enjin and mew and am okey with both so far.
Sorry but i want to give you an caution using one wallet in the multi coins for isn't advisable because if possible they hpget hack all your investment will goes nothing.