Solid state drives are great.  What's not so great is when the manufacturer leaves a firmware out that is defective for an extended period of time.  The 0006 Release of the Crucial RealSSD C300 has a problem where it stutters during normal usage for 1-3 seconds.  It's still usable but it's very annoying.

The people at this Crucial thread have made 69+ pages complaining about the problem.  If you're using Windows 7 these things seem to work in fixing the problem:

• Go to control panel > system > device manager > disk drives
• Under properies > policies check "disable Windows write-cache buffer flushing".  Immediately after checking this I stopped seeing the stuttering.

Another more recent suggestion is to disable LPM.  Here is a detailed post on how to do so.

EDIT 5/27/11: Crucial seems to have released a firmware that fixes the problem (version 0007).  I would recommend trying this version before the above advice now.  The notes state:

Release Date: 04/26/2011

Change Log:
Improved product reliability.
Resolved performance anomaly which resulted in brief, intermittent pause in drive response time for some users.