Ouch...I remember things a little differently...but that is the nature of things.
Fantom makes a great engine. It is considered a "big block" .15. It has a high rpm range, maxing out near 42000rpm. Produces great low end torque, and excellent high end speed. The engine can be geared to give you whatever you want, like most engines can, but it does it with more oomph.
The only two areas that seem to be weak on it (right out of the box or can as this engine comes in a can) seem to be the carb and the pull start.
Although I have not had any problems with my carb, there have been a number of forum members that have had issues with the LSN being overly sensitive to adjustments and the HSN being a little hard to find the right setting. I personally have not had any problems finding the sweet spot for my Fantom with regards to needle settings.
The pull start seems to also be a little on the weak side. It functions great, but the spring that is used has two areas of failure. These are common to all pull starts. Those areas are at the central hub and at the outer edge where the spring connects to the casing and the pull start pulley (for a lack of a better name). These are areas where the spring has obtuse bend points that cause weakness in the metal over time allowing for breakage if the pull start is over extended (pulled beyond the normal 6-10" of travel) or abused.
Aside from having one pullstart spring let go on my Fantom (which Fantom replaced in an extremely short turnaround time for free), I have had nothing but fun with it. It is an excellent motor, and I would recommend it to anyone with the $160 to spend.