Could not find a downside :-)

The cigarettes I press not, but "heads" just the glow from and then immerse the poisonous stuff with one click. Thus, there is less dirt on the lid and the removal of the cigarette embers can no longer burn.
Flushing the ashtray is thus also very convenient: Remove lid, both parties briefly cleaned under running water with a sponge and dry (leave). When expressed cigarettes I had always scrubbing something the shell.

If the two cover flaps times should not completely close mostly satisfies another click - rarely have to repeatedly press the 'button'!

In the end I always Stülpe the lid of a 50-CD spindle (approx 8cm) on the ashtray because it really stinks nothing. Although does not look great, but because of course you can be very creative.

Personal Conclusion: Would I buy again