My 2.1 hrs of night circuits last night brings me to about 500hrs of night circuits alone. Nothing qwrong with them as long as the due amount of caution is applied.
As far as touched down and lift off distance, i have chalked out a 200m box on the runway and done it with ease.
i also teach 2 wheel touch and goes, as a dual exercise to refine pitch control. In most se engine aircraft, the C172 in particular, the increase in airflow over the wing from going to full power will give you almost instantaneous lift off. This doesnt apply if you're very slow when you apply the power.
Touch and goes at night are no problem. Most runways with decent lights through enough light when youre on the runway its almost too bright. They can be blinding at times.
The most dangerous bit is the climbout when its black as and the climbing turn on to crosswind.