For the last 10 years I have lived in a 2nd floor flat with a Busy road outside too (Hence My two were House Cat's)
I have recently Lost My Hamish to CRF
and only have Misty now.
But I can tell you that
It IS Better to have two cats than only one, as they are Great company for one another
especially if you are out working all day, I used to work 12hr shift's
I only ever needed one litter tray (I did try two but the both of them would still use the same one, they were'nt fussy
)
It just meant I had to keep a close eye on it and had to clean it out more regularly...
Although Cats have an excellent memory, I would doubt that Oliver and Miu would remember one another, as Bertie's
Mum has said, you may have some work as they may both be strange, but then again they might be Ok
Might be a small bit of extra work, but i thought serving my 2 furry Master's was easier than serving one, Also more
enjoyable and rewarding
!!!
I hope this Help's and good luck with your decision
Only 3 week's
!!!! It may be easier than You think