She is good!
I've just had a quick read through the comments on YouTube - all positive!
The audience and judges reaction when she started singing was brilliant - I would have loved to have seen it live.
It was well edited because they panned in on quite a few people raising their eyebrows etc before she started singing. What I find irritating is when they cut to Ant and Dec who make unnecessary comments while she's singing.
By the way, isn't Amanda Holden lovely? I did some cartoon/caricatures for her wedding stationery invitations at the back end of last year. Every email from her had kisses on it, and when she sent the payment, she'd added a few quid for me to "have a drink".
If I hadn't got Lucy she could have had me. I wouldn't have put up too much of a fight.