Well I was in the same quandry a few months ago and actually bought the Core 50 in the spring through the bike to work scheme.
I have to say its an absolutely cracking bike, I think its about 26lbs so it is a light hardtail for the money.
Is a great alrounder and a good spec for the money. Where it absolutely excels is on swoopy flowy type trails wether trail centre or man made. It changes direction very quickly and I can only decribe it as “zingy” if that makes sense.
I find the geometry just right for an all rounder, not too slack that its flapping around on climbs, but not too steep to make it nervous on the descents.
If you want a light weight allrounder that climbs and descends well you will not be disappointed. The forks are very good for my heavy weight physique and I find them precise on the descents.
The one thing I did not like were the OE mountain kings, they roll very well but have terrible grip so they were changed early one, and I find the saddle a bit uncomfortable so that was recently swapped for a WTB one.
Great bike, buy it!!