I havent really used it enough to take advantage of the flash cache yet(Atleast I dont think so) but it was quite noisy during osx install but its been very quiet now and the same as the stock 500gb 7200rpm as far as noise and vibration.
Here is what my drive reads -
ST95005620AS:
Capacity: 500.11 GB (500,107,862,016 bytes)
Model: ST95005620AS
Revision: SD23
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Rotational Rate: 7200
Medium Type: Rotational
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Volumes:
Macbook Pro:
Capacity: 499.76 GB (499,763,888,128 bytes)
Available: 463.82 GB (463,818,264,576 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk0s2
Mount Point: /