Well- I've got a laser. And I
LIKE it!!!!

There- I said it.
I find the laser useful in general honing in on my intended cut. Really useful on rough cuts. I can mentally calibrate it from there. Perhaps the blade cuts slightly into the laser mark, maybe not. easy to adjust the wood. My only complaint with the laser is that it is centrifugally activated. Ideally, I'd like it to mark before starting the blade up.
If it's a real accurate cut, I'll pull the blade down onto the wood to see where the kerf hits to double check before hitting the spin button.
My saw is not sliding, but works for most stuff. For me- the next step would be to mount it to a solid base with guides on either side to keep longer stock level for the cut. With the longer ramps I could make definitive stops for repetitive cuts. I will put this on my to do list right behind my wife's timing belt, fixing my roof, cleaning the garage, etc.. etc... deep down inside, I really really want though.
Disclaimer- I like to measure once, cut twice, and end up going back to lowes for more wood