I like it but bear in mind that it was the biggest climber in 2009. There was an explosion in popularity. Which is not what concerns you I know but sometimes I think concentrated use of it can make it seem something it's not.
I know 3 of them under 5 and they all have the middle name William!
I have a Lucas he is 13 now and have only ever had good comments about it. I love the name and it was quiet unusual 13 years ago (never heard anyone called it then) but has become more popular over the past few years. I dont think it is a 'common' name at all. as i am very posh
I have a Lucas, and know a few other little Lucas's. It's not 'common' but definitely more popular than it was. I'd say it crosses all social groups and is a pretty international name. One of the reasons we chose it.
My nearly 4yo is called Lucas (middle name James same as DP). DP is Star Wars obsessed, we liked the name anyway and even more so because even now he's at school he is the only one we know of, it was perfect for him/us.