Instruct: Classify Amazon reviews into positive or negative sentiment
Query: couldn't assemble it

I first made the mistake of putting the cross the wrong way on the base. When I managed to get that apart again, I couldn't get the screws to go all the way in, nor could I get the screws to come out again. I tend to think of screws as being something you can remove and reinstall, but that proved not to be the case here. I haven't tried to use it in its present unstable condition.