Beatles LOVE depends a lot on theatrics, costuming, dancing on stage, and lip syncing to recorded tracks (there is no live band as there is at other Cirque shows), so if you've been to other Cirque shows like O and Zumanity, you'll be underwhelmed by the lack of acrobatics and physically challenging stunts.
That having been said, it's certainly a fun time to universally recognizable music. The theater is intimate, with only several tiers of seats and a cross-shaped stage ensuring that everyone gets a good view. Cirque and/or Vegas novices, in particular, will certainly enjoy themselves.