I have to declare interest, am local repair agent.
Yes low pressure sensor needs cleaning periodically if system water is poor, true we just change them but you would get away with a clean.
Present dhw flow switches are fine, they weren't always.
diaphragm in diverter valve no bigger problem than any other boiler with same.
Bulletproof use of gas valve by pcb. Innovative pump proving technique (senses speed of change of thermisters) and fan proving by pcb/aps (starts it stops it to prove aps, starts it again). Basically it isn't in the individual components it is in how the pcb of the boiler gathers information and sends out signals that causes it to make good of for example a gas valve that another manufacturer has failed to get reliability from.
For fitting, at the moment the pipes you join onto can go up the wall behind the boiler or down as convension, but in all honesty they are a little tricky and all manufacturers joints underneath need a nip up when installing. The built in filling loop's nut where at the return pipe end is obstructed by the bent pipe from the system water Dyson style filter (a major good feature not on any other boiler I can think of, though I still fit a magnaclean aswell, but I think the perfect part would be this cyclonic filter with a nib magnet in the sump).
At the moment you get a remote control hellicopter which sells on eBay for £100.
Easy enough to problem solve and repair, except for the jumbled pipework underneath but then you have the benefit of this filter which is the cause of that and your filling loop is tucked away neatly. It's also a quality filling loop I only have one in stock and they are seldom ever changed by anyone, is what I was told when I asked why I only had one.
As for boilers with jiggs, I hate them. I like my pipework to be straight, haven't found a manufacturers jig that you didn't need a crowbar for.