The delay and poor management aside, the ZF5 IMO is quite a decent phone by any standards. It may be just a mid-tier model but it certainly competes well even with top end models close to 3 times its price. I bought my ZF5 to be used as a travel phone. After some time with it, it has now replaced my Sony Xperia ZL as my everyday phone.
We all know that mobile phones now have a very short product life cycle. In 1 year or so, the used-to-be top of the line model becomes obsolete. For those who are really interested in getting the ZF5, i'd suggest that u dont wait for Asus SG to launch the low-spec model. How much longer do u want to wait while the world goes by? As it is, we are already hearing loads of complaints regarding stock availability EVERYWHERE. At S$2XX, i think its a decent price for the high spec model. IF u think that is expensive and u would rather wait for an even higher spec 32GB ROM model (cant see why u need that much ROM unless u have tons of games to install), u will forever be in the waiting game since a new and better model will always be in the horizon. Currently at this price point, i am quite positive the ZF5 has no competition. Those of u thinking of spending similar $$$ on some XYZ brand Chinese phones powered by mediatek processors, think again. Their performance dont even come close, not even the octa core powered models with 2GB of RAM.

I know because i've been there and done that.