On your questions.
1. Some people seem to have relatively loose Encore's and accuracy doesn't seem to suffer for it. You can always go for the cheap fix with tape if it bothers you.
2. Although some Encore's may have rough trigger pulls, the one that came on my gun is pretty close to that of my smithed Rem 700 trigger--very clean break at around 4 pounds.
3. Hammer spurs may break--I have no knowledge on this topic.
4. Accuracy--This is where RedHawk and I will disagree. My Encore--while I love many of its features--has a very finicky barrel. It shoots 3 loads very well, but outside of those loads it shoots rather poorly. Now that Michigan deer season is finishing it should be headed back to the factory to see if it's me or the barrel.
5. Just in case you missed this complaint in the TC rifle forums, some scope bases will not match the contour of some of the 209X50 barrels. To fix this you need to use Burris offset scope rings or a scope with a LOT of vertical adjustment. Probably won't be a problem on the gun you buy, but be aware.
Overall the Encore is a great system, especially if you plan to shoot other calibers. Very nice ergonomics, nice trigger, good customer service (so I've heard), and usually very accurate guns. Yesterday I just recomended one to another hunter looking to move up from the Hawken he's been using for years.