Breakout boards for servos/motors

I know I want to start a project involving multiple servos, I just don't know what the best option is for controlling them. I have an UNO.

There is this: Pololu Micro Serial Servo Controller (assembled)

and there is this: Adafruit 16-Channel 12-bit PWM/Servo Shield - I2C interface : ID 1411 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits

Is there any benefit from having the shield than the board?

Does anyone have any experience with either?
I'd Like to know what you think! Thank you!

From a quick look I suspect there is little to choose between the boards apart from the physical layout.

A shield can be inconvenient if you want to do other things with an Arduino and cannot access the I/O pins you need.

The Pololu board uses Serial for communication. That would probably require the use of SoftwareSerial on an Uno which has only one HardwareSerial that is used for communication with the PC and for programming.

You have not said how many servos you want to control. An Uno can control 12 (IIRC) without needing any external board. A Mega can control more.