Has anyone ever used a mini crib before? If so how long did it take baby to outgrow it? Need help!

I have a mini crib but she’s never slept in it once so I don’t even know 😂 I put her in it still to sit in it and she still fits it but it depends on the one u get some only recommend up to a certain weight

My son turns two in October and he can still fit in his.

Yes I have one currently for my daughter. She will be 2 in February and she still has plenty of room. I have a dream-on-me mini crib. It's bigger than a portable crib but smaller than the standard size.