Although this is an older post, I would like to share my thoughts on the CT Cyclone. I purchased mine new a few weeks ago, as of this post, and could not be happier with it. There is something about keeping a tool line in the same ecosystem when the design is mutually supporting across different platforms.
The CT Cyclone does an excellent job at separating particles before hitting my CT 26. I recently completed a bed build for my daughter and emptied the CT cyclone at least 4 times. Note that the CT Cyclone, coupled with my CT26 is the most used tool in my shop as I use it for all dust collection. From the TS75, Kapex, Domino, ETS-EC, MFK, HL 850, OF1400 in CMS - the CT26 gets used on everything. At the end of the project, all that remained in my filter bag were fine particulates - not a single shaving of wood despite all the ripping, crosscutting and domino-ing I did on the project.
I previously owned the Oneida Dust Deputy (ODD) separator. It performed the job of dust/particle separation just fine. However, the CT Cyclone has a few legs up on that unit.
First, the CT Cyclone (CTC) has a clear body collector bin. This makes it easy to tell when emptying it out is required. With the ODD, it is a non-transparent composite; unless I was constantly opening the lid to check the levels, the only way I found out it needed to be emptied was when the hoses became clogged from overflow. Also, the CTC bin is easy to remove with the rest of the unit staying on the CT 26. Granted, with both units, you can use a garbage bag to collect particulates, however I found that using a bag diminished results and would find shavings being sent to the filter bag inside the CT 26. With the ODD, if you didn't use bags, you would need to remove the entire unit off the CT26 and dump it. With the CTC, I only need to remove the bin - it's a quick process. Once the bin is emptied, place it back in the garage and secure the two latches. It's quite quick.
The last feature that was unexpected came in form of the design in the Festool ecosystem. When working on the bed project, I needed to make some cuts on my Kapex. I only have the Kapex, no support wings or stand. Unless the piece I'm cutting is generally short, I need some type of support for the cut piece. For a while I fiddled with different sized objects on the adjoining table to support my work piece: scraps of wood, cardboard boxes, and even SYS2 containers. However nothing was perfectly plane with the Kapex.
While scanning my shop for an appropriately sized object to support my work, it dawned on me that the CTC (when mounted on a CT26) is not only close to being on plane with a Kapex, but it is EXACTLY the same plane as the Kapex. This completely blew my mind and solidified the genius design of Festool products.
Needless to say, I am beyond happy with this unit and highly recommend it to other users of the Festool line.