I had no enclosure on my 250 for the first year then added enclosure with intent to start laser projects. I have since adding the enclosure had to adjust the filament routing and have been using your Thing:4574858 and really like the clean look and how I think it is helping avoid sharp angles from the spool on top enclosure to the side enclosure entry hole to the print head.
BUT - It seems like I have had much more trouble with filament feed stopping. It seems like the setup creates a bit more friction and through a longer print will stop the feed midway. Then I have to go through the Gcode edit process to resume mid project etc. Also it is hard to feed new filament into the head with the printed circle connector that is used to replace the metal original connector so the press fit tube piece can screw into print head.
Do you have experience like this with the tubing as seen in your picture?