I was at Dollywood today for the first time in seven years, and the first time enjoying coasters. As such, pretty much everything was a new experience for me, and I approached it as a new park.
Wild Eagle is, as others have said, a wonderful addition. It's fun and smooth and beautiful and pretty unique. It probably won't threaten any world-class rankings, but that doesn't mean it's not worth a ride or two. Wild Eagle is the first coaster where I've had some discomfort in the restraints (I was fine on Maverick, I-305), as the shoulder straps tightened against my clavicles awkwardly on both of my rides and couldn't be loosened at all. But, I didn't notice it till the brake run, and I certainly wouldn't let that keep me from riding in the future. Dispatches seemed a bit slow, and the two trains would stack each cycle. It was noticeable, but not completely egregious, especially for a rainy opening day. Overall, I enjoyed Thunderhead more, but WE's completely different experience was extremely welcome and very re-rideable. Aesthetically, there is absolutely nothing about the project (coaster, hillside, entrance plaza, station, statue, etc) that is anything short of gorgeous.
I can't say how other rides compare to their "normal" selves, but Tennesse Tornado was strong and fairly smooth. Mystery Mine probably threw me around the most, but it always seemed to be because of the layout, not a car shake or anything. It also appeared to close early (there was a lightning delay around 3.45 for 30ish minutes, maybe it didn't reopen after that?). Thunderhead was my favorite coaster there, and simply wonderful. Being from Ohio, it was an absolute treat to ride a wooden coaster that is good because of the ride itself and not simply its historical status (I love Beast, but I'm not ignorant). It's not El Toro, but I love that it doesn't try to be, and it seemed to be even crazier after the rain slicked up the track.
Highlight of the day though was the impeccable friendliness of the staff (and the cinnamon bread). A complete lack of apathetic teenagers just looking for a paycheck, and an abundance of veterans who've worked 15 years or more at Dollywood because they love the place, work wonders on the atmosphere. That, and the cinnamon bread.
Oh, and a $15 Qbot is a steal. Absolute steal.