Went to see "Trial by Fire" and a Heart tribute act, "Heart Brigade" at the Fillmore in Charlotte, NC, last night. It was cool to see the turn out (the place was probably 2/3rds full, so I'd estimate 1,000 people). They were doing a Groupon offer on tickets (I got mine free as I was leaving a Bruce Springstreen tribute act show a couple of weeks ago). I was (pleasantly) surprised at how many "kids" in their 20's and 30's I saw in the crowd (I'm in my late 40's).
The positives: Heart Brigade out of Raleigh were really strong. "Ann Wilson" looked (and especially sounded) very much like the original. She especially killed it on "Alone," which can be a tough one for a vocalist. They threw in a Zep cover and a Who cover, "Love, reign o'er me." It wasn't as strong as the Heart version I've seen live, but it was still really good. "Nancy Wilson" wasn't nearly as aggressive in her playing as the real thing, though. One unexpected thing was they had a female drummer (surprising at how much power she generated, as she was very petite). I highly recommend checking them out if they ever play near you.
The negative: I was very underwhelmed by "Trial by Fire." The guy kind of sounded like Perry, but he was pitchy in a few spots and didn't seem to be having his best night. He had long hair and wore the tuxedo jacket, but he's paunchy (not putting the guy down for his weight as I'm heavy too, but for the purposes of being the lead singer in a Journey tribute act, it didn't help the "illusion.") "Neal's" guitar tone was nothing like the real deal and the drummer wasn't seeming to try and emulate Steve (or Deen) in some places (the way he played the opening to Separate Ways, for example). The wife and I listened to about five or six songs and bailed. It just wasn't moving us. Having gotten the tickets for free certainly made it easier to walk away.
I'm not saying not to check them out if they come to your area, as many in the crowd seemed to be digging it. I just wasn't that impressed.
Again, definitely check out "Heart Brigade" if you ever get the chance. She really sounded great.