Unfortunately to say the least this lamp is a BIG  disappointment! Quality control is very lacking!  Bolting the legs to bottom stand is nigh on impossible as is, to fix this either:
1) the counter sink in the stand requires to be deeper
2) the threaded inserts in the legs need to be closer to the end of the holes
3) the bolts need to be longer.
When I have finished reaming out the counter sink and have it put together I expect that it will be quite wobbly.
I have only had this many issues trying to put anything together when dealing very low quality "furniture".
I wish I had heeded the warning on the many reviews and not bothered with this lamp. I'm really surprised when reading so many negative reviews regardless of the star rating given that it is still being sold.
As it was the first thing I've ordered from Wayfair, it may be the last.