This is the second time I've seen Imogen Heap in Toronto, and I'm sure it won't be the last. Let me open by saying I love watching her live; all the eclecticism and under the breath chatter is well worth the price of admission. That said, her shows tend to be plagued by technical problems which are at best minor glitches and gaps in the set that she fills with curious anecdotes and whimsical ephemera, but at worst total collapse of all things technical smack dab in the middle of your favorite song. I don't think she's ever performed Hide and Seek all the way through the first go 'round. This can be a bit jarring, but she is so adored by her fans, and as Death Cab for Cutie once said, it's interesting to watch an act that makes mistakes; it makes the event unique. The setlist was great, but there was no real arc to show; no build to a peak or anything. You just kind of watch her flit around and do her thing.
Without getting too harsh, the openers also happened to be players who took the stage with Imogen, so what I will say is they did very well while under her guidance. The first opener was actually pretty good, but ultimately forgettable, while the second is a great example of someone who has a certain talent (in his case programming and beat making) but no other discernible abilities; ie: he could not sing to save his life, had no sense of melody or songcraft, and was lyrically on par with a tween in his basement playing World of Warcraft. Giving him an opening spot was bad judgment.
All said and done, you'll never see anything quite like it, and you get the overwhelming sense that you're seeing something nobody else will ever see; and that can't be planned and executed, it has to just happen. Imogen always delivers on that score.