we looked at those for Darcy, but decided against them.
For less than what it cost I got a basic cot and a chiropractic single ensemble (and would have had left over $$$). In hindsight I'm glad we didn't as she outgrew her cot before she was 2 (and refused to sleep in it at 16months anyways) so the toddler option was wasted plus we would never have used the other bed options.
Great cot I guess if you get the use.