I have used the product for both normal fog and low fog effects with a chiller unit. The quantity of fog and its response to DMX are both very good.
The product is well designed and solidly constructed.
I looked at buying the M-Fog 2500, but opted for the M-1500 because of its better physical design in regard to the fluid tank, amount of fog per unit cost and its lower power consumption, making it easier to use with other equipment without needing an extra power cable.
The access door with magnetic catch is a very practical arrangement. It could benefit from being rather more heavily engineered, but is fine if reasonable care is taken when it is open.
It's a pity that the cable to the remote is not supplied in 2 sections with XLR connectors having an appropriate number of pins so that it could be extended. This would be very useful for those intending to use the remote, but I was specifically looking to use DMX control, having other fog machines with remotes.