Dated property and freezing shophouse room

The hotel was having a good deal of 2nd night being free so we had a 3d2n staycation over the Hari Raya long weekend. Check in was 2pm but was informed at 3pm that the room was not ready. I had the choice of waiting or 'upgraded' to a shophouse room which was on the 2nd floor; I picked the latter.

It was highlighted that the room was in another wing would be quite a walk, but it turned out to be about 5mins walk which was not too bad. When I entered the room, I wondered if I had really been upgraded.

'Shophouse' meant stark wooden furnishings and non-carpeted floors (I'm a carpet person), definitely not as special as I thought it would be. On closer inspection, the carpet that was in front of the TV set was littered with hair and dust, something the housekeeping had obviously missed out on. The rest of the room was just that, and to be honest, I felt the room was not deserving of 5-star rating at all, even though it is quite spacious (it had plenty of space even after adding 2 extra beds). The 'upgrade' was overhyped; perhaps the normal rooms would be even better?

For some reason the temperare of my room seemed to be stuck at a freezing level and refused to warm up even a little even though I tried to set it at the lowest fan speed and warmest temperature available. We were all absolutely freezing inside. I mentioned to the front desk on my way out and were told the technician will take a look. When I came back, I enquired and was told the technician had gone into and left the room already. I asked if then he mentioned there was anything wrong or did he rectify anything, I was given no answer because " the technician usually doesn't tell us or report to us after checking". So erm, what was the purpose of the visit then?? We decided to freeze our brains for the rest of the stay since the hotel couldnt do anything about it.

Didnt have the chance to try the breakfast, but the high tea at the lobby lounge was pricey at $40 per person but little variety and taste too. Don't go for that.

I came with high expectation because this is a 5-star property but was rather disappointed at how the 'upgrade' turned out to be and the apparent lack of going the extra mile for in-house guests, and maintaince of the property. The outside and common areas of the hotel looks good though so maybe they're just really neglecting the rooms. Will post the pictures when I get them from my friends.