I decided that my expertise with gas tight joints was not my most pronounced skill so had the sytem installed at the Shepton Show. The installation was very efficient and very neat, and we were clearly shown how to refill when required. The actual installation was neater than I would have managed however long I had, but only took 1 hour.
You can imagine that we faced our first refill with trepidation, it happened near Chester and was SO easy we could not believe we were (a) doing it right and (b) had been worried about doing it.
The actual process of refilling is well explained on the Gaslow website;
http://www.gaslow.co.uk/
and when we had ours installed we were supplied with adaptors for use in Europe (two different ones are required!) and a very extensive package of information about where to refill within the UK including organisations which work via a chargecard system at a reduced price.
Our overall verdict is that the system is excellent, the installation straightforward IF you are competent with gas tight joints and the aftercare superb. The cost of the gas is much cheaper than bottled BUT I don't think we will ever recoup the costs of installation - but the convenience throughout Europe more than makes up for that, but my wife (with the mathematical and analytical brain) thinks we will do after about 15 complete refills at the present price..
I would be happy to answer any more points you would like clarified.
Dave