That’s a nice way of putting it… my comments generally had ‘more salt’… 
Eventually I said “bugger it” and just used it. If you are not switching machines daily (as I was) you don’t see as many ‘warts’.
It is close enough to Excel I can use it, only once did it really mess up but I had a backup… TBH that might have been all my fault… 
Cheers
G