I am all new to the violin, and I bought a second hand instrument, online, which came with rosin that was old and dried out. So, what to do – it is actually difficult to find out what to buy, unless you have a teacher or an experienced violin player around to guide you, so I bought a couple of different types, only to find out that none of them were easy to apply to the bow.
The next step was to conclude that the bow wasn't good, and the rosin wasn't the best option either, and then simply to buy a new bow and some new rosin.
This time I had luck! This particular rosin, together with Roth & Junius RJB Composite Violin Bow 4/4 worked very well for me, and I found that I could quickly feel where on the bow a little more rosin was needed, making it easy to ensure a good spread all over, and from there, to start playing!
Again, I bought two different types of rosin, but this one was the first I tried, and as it works well, I'll just stick with that. Life can be easy sometimes :)
As for the price: It's not the most expensive, not the cheapest either, but my guess is that it will last for a long time, hence, the price becomes somewhat secondary to the fact that it actually works well for me.
From my current level of knowledge and experience, I can only recommend this rosin. It does leave a white powder on the strings, but that can easily be wiped off with a cloth when done playing.