Not exactly
Plug and play? Well, not exactly.
You'll also need two specific screwdrivers, one OO philips and the other torx. Also creating a bootable copy of the existing OSX, such as one on a flash drive, towards resuming with the SSD. There is detailed information on this forum regarding this, as well as helpful YouTube videos.
My understanding that the Crucial M4 should work well with the third-party software Trim Enabler. Although expect that with OS updates you may have to reestablish TRIM.
As often the case, the Devil is in the details. Yes, installing a SSD a fairly simple and welcome upgrade. Just know exactly what you'll be doing in advance.