Sorry if this in the wrong place.

I currently am using a basic 4 wheel stroller for dd (15mths) it was left over from ds2.
Said stroller is worn out and Im ready for a new one.
after looking online I have seen a 3 wheeler I like the look of. I havent seen one in shops to try
Please can you share your experiences with me of both- it will also need to be able to fly- check in at gate.
The umbrella style strollers seem most popular