Installation is very neat. Charger works everytime with the Zoe. Charge starts immediately - unlike others that make the car say immposible to charge or check post or ongoing checks! App works for me shows power used , price & duration.(I havent tried the sceduler as yet).I have had my charger fitted for a week and have used daily. I would definately recommend the tethered version as it 4.5 metres and is Soooooo easy to connect. I disn't want the charger mounted onto a building wall so I was advised to put a duct at least 18 inches into the ground and mount a post at the end of it. The installation took 4.5 hours thereafter.It is such a luxury having 180 miles on the guessometer! I would definately recommend chargemaster. I only had to wait 7 days to have it fitted. Note- If your house main fuse is 60amp you likely to need to get it upgraded and with this the meter & conusmer unit tails may need upgrading. The upgrade is usually free of charge and is carried out by your service provider & uk power networks.1st you will need to get the tails upgraded so they can take the additional current - this is done by your energy company.(they may ask you to have an electrican onsite to change the Consumer unit tails as these are your property/cost. Then UK power networks will upgrade your incoming supply & fuse to 100amp to allow for the additional demand in current.(car7kw=32amps). I have been advised in some cases they will upgrade just the fuse to 80amps without upgrading the tails which makes its a lot easier and cheaper as no electrian required. Tail sizes are 16's & 25's. 16's can go upto 80amps but if you want 100amp then will need 25's which are a quite a bit thicker. You should sort this out before booking with chargemaster as installation cannot go ahead if there isn't sufficent supply. Especially if you have an electric shower , electric oven , electric immersion heater. My house has gas oven & heating so I should be ok with 80amp fuse. The main service fuse is not changable by the customer and if it blows your whole house will have no power until uk power networks send you an engineer! Chargemaster may be able to arrange some of this for you , however you can arrange it yourself like I did. If you are thinking of having a second charger fitted at a later date then you will definately need 100amp supply.