Instruct: Classify Amazon reviews into positive or negative sentiment
Query: painful!

I bought this anticipating easy longhaul travel with several stopovers. What a piece of rubbish. We struggled from the second we got it out of the car at the airport to check in. The silly wheel pin that holds the wheel in place kept popping out and I ended up tying the seat to the handle with the straps because it just wouldn't stay in place.The handle is not particularly sturdy (considering the price!). All in all it was a royal pain in the ****! Every time you need to detach the seat you have to screw/unscrew it at the back. It takes FOREVER. ALl the while you've either got a queue behind you or you're the last one off the plane. As for doing it with a toddler in the seat - impossible!We checked it into left luggage at our first stopover and picked it up reluctantly on the way back. Arriving back at the airport the wheel pin on one side finally gave up the ghost and I ended up dragging the whole silly contraption to a luggage cart.Don't waste your money.