Hi there,
To start with the okay things first - some of the disaster sequences were hugely excessive and brilliantly creative in their way (9 or 10 out of 10), it's ambitious in size, and the cast was mostly good. I enjoyed the comic Russians, even though they were clichéd. I've enjoyed slightly silly disaster films in the past, like Knowing and The Day After Tomorrow, so I try not to take a snob attitude towards them.