So far I have always bought OSRAM energy-saving lamps and was satisfied, but unfortunately offers OSRAM for some time warm white energy saving Lamen only with 2500K color temperature (type 825). The Philips Tornado offers the proven 2700K color temperature (type 827). When you turn, there is no pre-heating time, the lamp is directly quite bright, visible immediately brighter than my previous 11W lamps from other manufacturers.
I will certainly recommend this lamp my less tech-savvy friends and relatives (how many times you yourself somewhere to visit and performs its business in the toilet in the dim light. Before the lamp is then warmed up, you are already finished).
On the subject of life, I will report if the first fails.