E&P Hydraulic Levelling

I have recently paid a deposit to have the E&P system fitted to our Knaus as soon as the lockdown permits and whilst I recognise I am talking to a limited audience, I was wondering if anyone could advise whether, in their experience, it was worth paying the extra £1000 or so to have the full system fitted as opposed to the 'compact' system which just levels side to side.

I have been using Lock 'n Level both to level the van and fit the twin wheel locks for over 6 years now - and have been pleased with it.  However, a recent knee injury has meant that it is extremely painful to kneel down and deploy the L 'n L and fit the wheel locks. The E&P system will permit me to do this much more easily.

I am just wondering if I go for the compact system, whether or not I will regret not having the full system fitted since it's not possible to 'extend' the system if I change my mind at a later date.

I'd be particularly interested to hear from anyone who 'just' has the compact version fitted and what their experience is.

Thanks - Richard