Does anyone have any experience with
an electrical gear shift such as kliktronic?

Generally, power shifters are a great boon for racers, but are a waste of time and money for a road-going car. They can shave milli seconds off shift times, but don't actually make it any easier.
The Kliktronic is probably the heaviest one around, but they are all tricky to set up properly, and neutral can be a real b1tch to find.
A far easier, lighter and more reliable method for use in a car, is to use 2 paddles with lightweight throttle cables.

Hi
We've fitted a klicktronic to a car at MK, not too hard to set-up but I think the benefits are dubious for a road car. Martins brother Steve has made his own from two solenoids and it seems to work fine but even so I would still have the mechanical change as a back-up just in case, perhaps with a screw in gear stick. They're not allowed in Bec's racing anyhow, so I think it's probably just a toy feature, you know like neons and furry dice

OK - I'm posting this as a 'normal' driver rather that a drive with one arm who needs the klicktronic.

The kliktronic is quite heavy, but MK/Locodude still managed to build an Indyblade with one, and heavy comfy seats at 451Kg wet weight.

yes, finding neutral - bit of a pig - use the standard shift.

But other than that - even Martin was impressed - two hands on the wheel at all times - fast gearchanges - and with the new techtronics ignition interupt I've just acquired - Clutchless full throttle upshifts here we come.

If you've got an extra £400 and you wanna play - its worth it. if you need one (like me) they are worth 10 times their weight in gearchanges

Cheers