ive had my 147 for 2 years i had a 2.4 156 before that for just over a year and ive had no elec issues with either, in fact barring a clutch in the 156 the only time the bonnet gets opened is to clean it or for a service.
mines the lusso model so has full heated leather, cruise control climate comtrol, bose stereo etc and i paid £3200 2 years ago from the 1st owner having done only 58k

so they depreciate fast compared to bm's and vw's but much better looking, and you have to own one to appreciate them,
even the trim in mine is still all where alfa intended it to be!