According to Alastair Sooke at The Telegraph no its not, he says;
Underneath the hippy claptrap, there is a talented artist who occasionally muscles her way to the forefront, but whether you can be bothered to hang around for those moments is another matter.
“I don’t think the poor bastard will get recognition until she’s dead,” John Lennon once said of his wife.
I’m not so sure she’ll get it even then. Except for a handful of examples where Ono has struck artistic gold, the work on show at Baltic feels slender and slight, and too muted and tasteful to really stake a claim to longevity.
What do you think ? Full article here