People that say VLSD suck aren't really using the correct diff in the 1st place to be honest. They prob want to do doughnuts in a car park or something
A 1.5 or 2 way clutch type is approx £600. This is the best option but is beyond my price bracket.
If you want to drift then weld it. My VLSD will have the car sideways in the dry. The VLSD gets hot and its viscous coupling loosens off allowing the inside wheel to spin.
If you want to combat single wheel spin and nicer control when in a 'grip' situation the VLSD is brilliant
If you go from an open diff to a VLSD, you'll think its good. If you go from a VLSD to an mechanicall 2 way diff, you'll think that its so much better.