Strida bikes are polarizing people; some start to grin during their first ride and others do not like it at all. Generally I do not recommend to buy any bike without making at least a short test ride around the block. You could check this map, perhaps there is another Strida user near you and possibly you could meet for a test ride:
https://stridacanada.ca/map-strida-canada/
At the newer versions (5 upwards) the freewheel can wear out within just 1500 kms, depending on the freewheel version, riding conditions (Stridas do not really like rain) and the power/weight of the rider. Some freewheels last for 8000 km or more, but that can’t be told in advance.