I had my Intergas Rapid 25 supplied and fitted last week, it is obviously, superb, so far.
They have far fewer moving parts in them (4, apparently), which is why it was my preferred choice. The Vaillants my friends/family own have all required obscure parts replaced at quite high cost.
Apparently, when an in-warranty Intergas fails, Intergas will arrange the repair and supply the engineer with a box which contains all 4 of the moving parts, so you shouldn’t be left in a situation where the engineer apologises for not having the correct part and you will need to wait a few more days.
The engineer I had preferred Ideal and tried to sell me a Vogue, but the cost difference was high enough to make me do a bit more research, the maintenance guys where I work all sing Intergas’ praises and theirs haven’t failed in the time they’ve had them (4+ years so far). The engineer said he would fit whatever I wanted and outlined the differences for him. He did say however, he doesn’t repair or fit Vaillant boilers (and he pronounced it properly) because they have lead him on a goose chase more than once. I did wonder if I should be worried by this, but I didn’t want a Vaillant anyway.
He also, during the initial visit to give me the quote, told me in detail what he suspected the fault would be on the existing Vokera, but wifey and I had already decided over Christmas that we wanted a replacement. After the install of the new boiler was done, he showed me the different problems on the Vokera which was removed and he had guessed correctly.
Of course, only time will tell, my choice may turn out to be a bad one, but, at the moment, the novelty of having scalding hot water at each hot tap when it is on full is huge. I’m confident so far, the engineers were both hard working and any hurdle they were presented with was sorted quickly - turned out to be one of those jobs I was completely fearing but it went smoothly.
I’ll be back in 5 years to either fan boy on Intergas or tell you to steer clear of them.