Compared to the M215 M235 looks more elegant and lies better in the hand (It has given me personally the already well-liked in the M215). Even the cover of the battery compartment is better managed in the M235.
For mouse itself:
- The mouse does precise on most surfaces I've tried so far (for example, right now a couch cushions) only glossy surfaces or glass could you do to create so far.
- The radio module is pleasantly small and can get stuck even when transporting the laptop (can also be hidden inside the mouse that's not lost it goes)
- I think that the mouse shape and non-slip surfaces very pleasant in the hand. However, in general I like little mice also more than great. For people who like to put their whole hand on the mouse, this is much too small here.
- Battery life I can not evaluate. I for one month using the mouse now in continuous operation and up to now the battery is not yet defaulted (would indeed be bad)
- Reach so far I could not notice any limitations. (Habs just in 2.5m Distance tried)
What I like about the M235 is especially the simplicity. I did not want a mouse with many extra buttons, or many extra programs (I got even before included a media player with a mouse?!?). The M235 is simple to plug in the laptop and works after what felt like five seconds installation time (when you plug in a new laptop) Precise pleasant. She is small, looks good while still being pleasantly unobtrusive and especially very cheap.