1. I'd say the reliability problem is a real issue- if your unit has that problem. Mine does not, but YMMV. Not having experienced the problem, I have no idea how one would fix it were it to occur. Presumably Lasermax would replace the unit or spring?
2. The method of activation is a two-edged sword. Some people prefer to turn their laser on manually, rather than have it automatically come on when the weapon is drawn. Frankly, if I need my sidearm so quickly that I cannot activate the laser, I probably won't be picking up the dot and using it to aim anyway. I have no problem getting the Lasermax activated quickly and instinctively. I think if you train to do it on your drawstroke you can make it as least as engrained as sweeping off a 1911-style safety. It's not that difficult, and even if you forget, the gun will still go bang.
It is, however, a two-edged sword. If you want the laser to come on automatically when you draw the weapon, the Lasermax just won't do it. Of course, if you want the laser to stay off until activated by you, Crimson Trace won't do that, either (at least, not without adopting an odd grip to avoid turning it on, or using the master on/off, which is not conveniently located for such use, IIRC).
Also, the CT unit can be blocked by a high thumb hold if you're a lefty. Lasermax is ambidextrous (not really an issue if you're not a lefty).
Mike