I've been testing Silent Investment for last 5 months at the same time as Tim Sykes service and I've been seeing quite an improvement.
I can't comment on quality or accuracy of the alert as of yet, since I am not at that stage but I want to share my experience as of now and will add another post based on my findings.
I was looking for a service not only that provides alerts but also a service that teaches me why a certain play is a good option. By having a service that provides an answer for "Why" is a type of service that is more knowledgeable and can back up their play.
A lot of website dish out alerts with out any understanding that people invest real money and most important time. If an alert doesn't pan out it follows with frustration. Having said all that, I am finding as of now this service to be reliable, fun and quite interactive.
Mentor seems to be very educated and consistent with this teaching method. One thing I appreciate is the fact that I can test everything they are teaching me and I can start to see a major improvement. Now I am making mistakes however I rather do them now then later once real money is used.
So far I am optimistic but then again time will tell.