No. My Mum and I are really close, and she has a medical background so has the potential to be very helpful, but it was still a no for me for a few reasons. Firstly, I was only allowed one person in with me according to hospital policy, so that was always going to be DH. Secondly, Mum would want to make it all better and would probably get on my nerves. Also, my Mum (I'm adopted) has never given birth and I really wasn't sure whether for her sake it would be the best idea.
That said, if DH couldn't have been there, then I might have reconsidered all that and had a good talk.
She was pretty indispensable after the birth mind you. Between dealing with a couple of difficult midwives, translating the medical speak when DD was taken to NICU, DH and I would have been lost without her. She even somehow (the special paediatric nurse handshake I'm guessing) got permission to go into NICU and hold DD when she was delivering pumped breast milk after I had been discharged (strict parents only rule)
If we were going again, I'd still have DH at birth, but I'd have Mum close by for afterwards. Especially as DH is brilliant during the birth but all his blood/hospital squeamishness kicks straight back in afterwards and had to leave when I was having my blood pressure taken 