Originally Posted by Aviatrix
You can use the lounge, but not the showers. To get a shower key you need to deposit a Platinum card with the receptionist.
KLM has never made showers available to Business Class travellers. The showers have always been a perk for their top tier Elites. What has changed is that the former top tier lounge is now available to everybody... but the showers are still reserved for the Plats.
Thats' weird, I specifically emailed KLM about this and they said the showers were open to all...oh well, smelly me.