Impressive tires for touring rated. Dry grip and handling is good, but I was impressed with the Wet grip. Not as good as the cheapest/greatest :) Silverstone Evol-VIII, but the comfort you get make these tires a great buy. Best touring tire I've tested in 205 size. They wear very well for such a (wet) grippy tire.
Bottom line, if you're not rallying with these guys, you'll be surprised with the grip (specially in the rain), the low noise, comfort and thread wear. If you are looking for a TOURING tire but sometimes you drive like Loeb, the Contis Premium Contact 2 are the first choice, as their feedback is far better and cornering stability is superior. But as I said before, for 205 size, overall, the ER 300 are the best in it's class.

Very nice tyres. Dry grip was very good indeed, wet grip was relatively even better. I was really impressed by how much these tyres held on wet roads. Very confidence inspiring. Wear rate was excellent, noise and comfort similarly so. For a "touring" tyre, these are superb and much better than the P6000s so common for this size tyre (which I've also driven). They're only let you down a little when you push them (but then you really should be buying a performance tyre, not a touring tyre!), where you get a lot of scrabbling and sudden break away, and also steering response isn't the best, so they're not the best for fast country road driving. Everything else, especially motorway miles, bring it on!