DockATot

Bree
Has anyone used the DockATot to help their baby with sleeping/napping?
Our lo is a 14 weeks and while she sleeps relatively well at night, getting her down for naps and bedtime is a daily struggle. 
If anyone has used this as a solution, I'd love to hear your feedback regarding:
- use for sleeping? Did you do co-sleeping or use in the crib?
- was it worth the price?
- is the Deluxe suitable for long babies? Our lo is already 26" long and their website shows the Deluxe goes up to 30".
Thanks!