I had one on my registry but removed it the other day b/c they are so expensive ($75 CDN for seat and tray) and I'd rather not have one right away unless I need it.
There are tons for sale on Kijiji and Craigslist so I thought I'd just wait until I need it and then buy it for less than half the retail price.
Re: At what age do you start using a Bumbo-type seat?
When he/she can hold his/her head up
My DD still uses hers too. She's 2. It's "her seat"
we sat DS in around 3.5 months, head contol. we honestly didn't use it too much...maybe 4 times! Maybe w the next baby we'll use it more...but it was funny b/c DS's legs are so chunky that when I'd lift him out the whole seat would come up. ha ha