I am staying in a apartment on the 5th Floor My friend told me that 5 is not a good floor no , it is truth? For the house gua , the entrance of unit is face East and the balcony is face West, can I said that my house gua is 7?

Dear Sim, you should ask your friend for the reason. As far as we know, every floor is fine(although each floor has a slightly different Qi to it) - how many 5th floors are they in the world - are they all bad too? For apartments, take the intended facing of the big building block. Then superimpose the chart onto your own unit. Cheers! Sherwin