VWR lower mount has a machined outer casing and bolts , as opposed to more OE like plastic casing for the THS lower.
I would buy the full THS set
lol (which would be about the same price as just the lower VWR!), you can fit the upper mounts later
Lets face it no matter how nice the VWR mounts are they are expensive (but very well made), do you need that extra enginneering ? Id say not for the lower mount.
THS would be just fine and considerably cheaper.
Dont forget lower can have higher fitting costs (unless you DIY) , plus geometry check after is advised (but not mandatory)
My review states I should always have done all 3 mounts together, i still stand by that, although I do recognise that it may be a step too far for many GTI fans in terms of noise + vibration.