The czech low-cost tire has high projected mileage and is good on snow, but lacks a bit of wet and dry performance. Pricewise, it can match the low-cost chinese tyres and in comparison, it's definitely a better option.
195/70 R15 doesn't belong to the most popular dimensions for winter tyres - there are 40 tyre models available, which can be compared to 215/65 R15, 205/65 R16, 195/50 R15. Let's break down the sizing - 70 is height of the tyre, which is calculated as 70% of the tyre width (195mm), which means the sidewall height has 136.5 mm. The wheel diameter is R15, which means it fits to a 15 inch/381mm diameter wheel. The total circumference of the tyre is 2054.6 mm, which is very similar to 225/55 R16(2054.29 mm), 245/35 R19(2054.92 mm), 285/30 R19(2053.34 mm), 245/40 R18(2052.09 mm), 245/30 R20(2057.74 mm), 170/80 R15(2051.46 mm), 295/25 R20(2059.31 mm). There are multiple speed indexes available for winter tyres in 195/70 R15: Q(160km/h), R(170km/h), S(180km/h), T(190km/h). The same goes for weight indexes: 97, 100, 104. You can find 195/70 R15 on 15 car models - mainly CITROËN, Ford, Mercedes-Benz, Peugeot, Toyota.