IMS Eternal fix for Boxster, any good?

[cycleclips]

Hi there, new poster here.
Anyone got any experience, good or otherwise, with the IMS Eternal fix (roller bearing type) by EPS for a 2000 MY Boxster S?
If so, is it to be reccomended, where's the best place to get it done in the UK, and how much roughly am I looking at, all up including fitting and VAT?
My car is a 2000 Boxster S with just 15k miles, immaculate condition etc but was 'professionally stored' for five years when previous owner went to the states for a while. I'm a bit paranoid it's ripe for trouble.
I'm aware of the LN Engineering ceramic ball bearing solution but wanted specific advice on the Eternal Fix roller bearing solution if poss.
Any advice most welcome