What makes good grandparents?

[Enzbear]

We're about to become grandparents. Our dc and partner's baby due around 1st January.
We have a pretty good relationship with them both meet up regularly, try to help out when we can and had them over for a lovely Christmas day.
Met my friend last week and they are not allowed to see their two grandchildren because of a fall out. They're heartbroken.
While I don't think that they have done anything particularly bad and don't think, god forbid, that will happen to us, it got me thinking as I see a lot of moaning on here about interfering/overbearing/selfish/non existent etc grandparents.
To those who have great relationships whether you are the parents or grandparents what makes it work? Any tips?

One important thing to remember is that what makes a good grandparent for one family would be a disaster for others- like any other relationship you will need to develop and fit with all of your needs. That relationship might not be the same as you had with your parents/grandparents or the same as your friends have with their grandchildren but it should be one that makes all of you happy.

My kids are a bit older now but I would agree with everyone who has said to be interested, supportive but not over involved.
When mine were small my in laws and my parents were totally different. My in laws would constantly take my son off, would never come back when we had agreed and desperately wanted him to themselves all the time. It was very difficult and meant that I couldn’t leave him with them as it was too stressful for me!
My parents on the other hand were nervous around children (hadn’t had any except me, 32 years earlier!) and worried about what to do when he cried.
Anyway, despite this slightly tricky start, they’ve all found their groove now. We live overseas so it isn’t perfect but it’s ok. My in laws are still a bit weird, insisting on emailing the kids at private email addresses (which I obviously check, they’re still only 9 and 11) and do slightly irritating things like giving one child more money for their birthday but in general they’re ok.
Mine have got better as the kids are older and do show interest in their lives.
But yes, interested, supportive grandparents who don’t think they’re always right and don’t have an expectation of how involved they’ll be are ideal.

Don’t be the grandparents who puts their wants before the needs of the grandchild. The amount of times I’ve read in here about the grandparents who are enjoying cuddles so much they refuse to give the baby back for a feed or keep trying to get the attention of an over tired baby, even though the baby is getting upset. Respect that the parents are the parents and they know their baby better than anyone else.