In my opinion it depends how good you are and mainly where you want to use it.
I usually go for hiking in Germany. We have ways everywhere in the country and forests and off course very good maps.
I am hiking as long as I am able to walk.
I usually can keep the direction without any tools, especially if the sun is shining.
If I am hiking I just have to look from time to time at the map and that's all.
If I leave the ways and walk through the forest like an animal, looking here and there it can happen that I loose the orientation, especially if it's clowdy or in the darknes.
So let's say, I have to look at the compass perhaps once a day, just to replace the sun or if I reach a difficult cross of several more or less identic ways.
For use like that the Silva Ranger SL is absolutely OK and big enough.
If I would plan to go some where in the tundra or in similar areas I perhaps would choose a bigger compass. But I don't do that, so I stick with the very light and compact Silva Ranger SL.
