This stuff is a must have!
I am constantly changing between PLA, PLA+, and PETG.
I couldn't change a filament type without my nozzle blocking shortly thereafter.
It became common practice to swap to a new/clean nozzle with each filament change.
Then I had to re-calibrate the bed height, etc. It was a pain.
I bought this stuff just to see if it would save me some time and aggravation and it truly has been one of the best purchases I have ever made for my printer.
This cleaning filament has saved me many headaches, and a fair amount of cash because my nozzle replacement costs went to basically zero.
But it, you won't regret it.@