They are AMAZING! My grandmother had problems with roaches for years. He came out about a year ago and she hasn’t had any issues since the day he walked out of her home! I now have/had a terrible flea infestation. He came out and sprayed and my infestation is now slim to none! He is coming back in about two weeks to spray again. I have full faith that they will be completely gone after the second spray. Mike is truly a miracle worker! Not to mention very reasonable prices!