I am not really qualified to say as I dont have 2 under 2 but I would buy a toddler bed.

Do you have a porta cot? You can always revert back to that for a while if you have problems with the toddler bed? Will bub be going in a bassinette or co-sleeping with you?

It just seems a lot of money for a second cot taht might not be used for very long.