Today we are testing the Caterwil GTS3 stroller while climbing to the 20th floor. Please note, on the 8th floor there was a mishap. The tracks began to slip and the stroller could not get up. How to deal with it, how to turn better from span to span, how to improve the hitch of the tracks? Take a look at the review. Read more about this stroller model at https://caterwil.ru/product/kolyaska-stupenkohod-caterwil-gts3/