I really did my research for the best scheduling plugin out there, and let me tell you Acuity wins hands down.
It is very easy to use and incredibly intuitive. It's beauty lies in sheer simplicity
You do not even need to install this plugin, just use the embed code from their website and it works like magic.
Unlike lot of other plugins, they do not ask for credit card details while signing up for trial version (14days). Yay!.
Their pricing is very competitive too. Almost 1/3rd of what vCita charges. Moreover, I found vCita to be rather complex, definitely more complex than Acuity. Also, Acuity had an option for discount coupon codes which vCita did not.
I really love the intake form feature in acuity, it is very nifty.
At the end of it, I would really not mind paying the amount they're charging. ($10/mo for single user business).
They've really thought it out well.
Look no more, go for this product, you'll be thankful you did.