I don't know about "good" or "bad", but they tend to be less responsive and create more of a spongy, floaty feel. In terms of creating a more connected driving experience, the best would be either manual or dual clutch systems. Obviously you can create good or bad transmissions in all of these categories and you may prefer a softer ride - there are customers who pay a lot of money for a softer ride or even be driven along, it just depends on what you want.