Based on previous reviews, I packed -32dB attenuation earplugs - fortunate, as even my 5th floor room had astounding level of street noise.
In addition, a guest next door left TV at max volume all night, even my earplugs failed to suppress it.
When I asked reception after 2 sleepless nights to reason with the unqualifiable "guest", the 3rd night was finally better - but during following night, it happened again. At which point I banged on his wall, risking an altercation - thankfully he turned it down a bit.
Saturday night it anyway turned into a zoo, two floors had incredibly misbehaving "guests", who even during the night, presumably drunk, found it funny to bang on my and others' doors.
I have not experienced anything like this in any hotel of this category in my entire life.