I recently took the plunge and textured three of my 1.0 M&Ps. A long slide Pro series, an M&P45 and an M&P22. Don't be afraid to take the plunge guys. I used a wood burning kit and a sharp pointed tip. I was light to medium pressure and did the .45 first. And by first, I mean the very first gun I did. The texture was ok, much better than stock, good grip, not nearly as aggressive as the 2.0 guns. Next the Pro-series and I was a bit more aggressive with it and got it closer to 2.0, but still not as aggressive. Just where I wanted it. Finally, I did the .22. The plastic/polymer is harder than the regular guns and the result, using the same technique, was 2.0 style texture, i.e. pretty sharp.
The 2.0 texturing is pretty aggressive. In some ways/instances, some will consider it too aggressive. Over time, it will wear down a little. If it is too much, some light and careful sanding will reduce the sharpness. I don't know if S&W molds the frame with the texturing, or if they mold it smooth and then press the texture in with a fixture. If I had to guess, I think the latter as otherwise it might be too difficult to release them from the molds. Anyway, I've had to trim some sharp edges or points. On the compact for example, the border around the rectangular M&P logo was noticeably sharp and I had to smooth it up.