IJGN I don't agree with some of the comments here so I would look at it this this way. We are speculating that these problems are a major issue as it's more likely just a intermittent fault that is hard to capture. If it is just a door issue then it wont be a major problem, it just needs identifying. Also to be fair to the owners, being that it is relatively new a modernisation is not required I would've thought. Its also fair that the lift company is doing its best to rectify the problem but sometimes it can be difficult. Think of the situation when a rattle in your car goes away when you take it to the mechanics and they cant fix what isn't broken. On whether you should move or not, stick to the building as finance considerations is generally the best way to go and lets face it, a little exercise sometimes(being only 5 floors) twice a day isn't 'that' bad. My advice is to stay where you are, have patience that the lift will be fixed soon enough.