I got the spinfire 1.8mm in mint green (which I love) about two weeks ago. I am an amateur player and I am newer to short pips. Saying that, it's easy for me to play almost any shot with them. The pips are super smooth, and get amazing grip for a short pip when playing touch shots. The flat smash is incredibly easy and not very spin sensitive. Flat chops feel easy with the slow sponge and get good enough bite to hook the ball pretty aggressively. Slices and pushes can be quite fast and aggressive if you take them like a tacky rubber due to the way the pips grip spinny balls on brushing contact. Counter drives feel super controlled and fairly spinny even if the pace isn't the fastest. Loops sometimes lose grip when opening up so you have to be sure to engage the sponge well and use a bit of muscle to generate that grip if making aggressive brushing contact against backspin. Finally, blocks are extremely easy and surprisingly spinny getting them over the net most of the time but you do have to add energy into top or side spin blocks or the sponge will eat all of the pace (which makes chop blocks easier to control and drop in awkward spots).
In summary, it performs as a spinny slower all around rubber with the option to flat hit extremely well and kill spin/pace if used well. It does play different than an inverted rubber but once you get used to the modified form you can play with a similar mindset that will naturally be a bit tricky with spin especially since you can learn to generate dead and high spin balls with similar form causing many shots to get slapped off the end of the table or into the net.
Also my rallies have gotten longer and more people smile during my matches which has added to my enjoyment.