I have mixed feelings about electronics in appliances. On the one hand, they can potentially make things possible that aren't possible or practical with mechanical controls. I knew someone years back who had a Lady Kenmore washer with the pre-programmed cycle control via mechanical buttons. Whenever that thing was made (about 1970?), it was a top of the line product. Now one can get that sort of programmed cycle control in an entry level product.
Although, whether computer controls do enough to justify them is another question. A dishwasher that can monitor the cleaning and adjust for perfectly clean dishes with the least energy and water used might not be a bad idea. Unfortunately, it seems like many electronic systems really do nothing that wasn't done by even entry level mechanical controls. The new electronic controls are simply more marketable, and cheaper to implement.
The biggest practical minus I see with electronic controls are that repairs are considerably more difficult, and reliability can be a real problem. However, a lot of this is probably due to the way the technology is implemented. Frankly, the real problem that I see is simply how modern appliances, regardless of technology used, are flimsy and apparently designed not to be easily servicable. I replaced a door latch on one dishwasher that failed way too early. Another time, I was faced with flashing lights that said "I'm not happy! I won't work!" But, doing a Google search turned up no usable information. The lights could be anything from a loose connection, a sensor failure, a control pad failure, or control computer failure. Would it have killed the designer to have actually installed usable error codes that actually tell one something? In fact, with alpha-numeric displays, you could easily have it plain English so one would know where to start looking. "Water level sensor failure!" or "Keypad failure!" or "My warranty ended yesterday! I'm now going to totally blow up! Have a nice day!"