No not bought them yet, just looking into different cages.
I only plan on getting one WW and wouldnt only get the one cage/section anyway. I'll be taking everything into consideration - ventilation, bar spacing, climbing (as in not having a set up where a hammie is going to break his neck) and what have you.
I know that a lot of people do hate the Ovo cages but I also know a lot who have found them ideal for dwarf hamsters with neither the size or ventilation being an issue. I would never put a Syrian in an Ovo or just have the one compartment.
Anyway, thats a topic for another discussion.
Been recommended the Mini Duna in another thread here so I'll be looking into those next