Things I liked: This added a new dimension to my Condor. My biggest issue with the gun in the past was trying to get it to shoot slower and quieter for target practice in my back yard. I tried all of the BS tricks with the Top Hat adjustments. The MM Tank is the ticket to shoot in a stealth manner. Leave your Top Hats alone and switch tanks out and you will be happy. I have been using the oiled Crosman 22 Premier Domed 14.3gr with great success. I can track drive them at 20m with no problem.
Things I would have changed: Include a screw cap with the spare tanks. For $170 this should be included.
What others should know: It is a must have accessory for the Condor. Order one and you will be glad you did. The 22 has plenty of power to wack a squirrel at 20m.