I have heard the same thing over on the Honda Accord Forums. They say over and over again to run NGK or Denso.
However, I listen to my pocket book. So I installed 4 of these plugs in my Honda Accord (4cyl.). At $4.00ish a piece after the mail-in rebate they are very attractive. Thus far I am having faster warm up during the morning hours and they make the car run smooth.
If you purchase, keep in mind they are a 60,000 mile plug, not a 100K plugs like OEM. Of course with the Denso and NGK at $10.00 plus a piece, if you do the work yourself they are still a bargain.