Generally no.
I also have the complete opposite view of most SP on this board about first families v second.
My husband is one of few men we know who has maintained a good relationship with his son as he grew up. Regular contact and very involved in his life. As an adult he chooses to spend more time with us than his other side of the family.
Most other men I know including dd dad has gradually prioitised the new partner/their kids/new kids. Generally I find alot of men prioitise who ever is sharing their bed. I also find with most other SMs I know the kids from the dad's side are treated as if they are as a result of an affair. Women tend to associate kids with their mothers and issues around competitiveness/jealousy and insecurity filter through to the fathers relationships with their kids. Men seem too be better in my opinion of not making such a strong emotional connection with existing kids.
Dd & SS have both had much harder childhoods than our joint kids.
Two sets of Christmas presents doesn't make up for the challenges of being part of blended families.
Our kids haven't experienced switching and swapping homes. Sometimes to places their presence is not wanted. Adapting to step parents/step siblings all the extended family that comes with. Disjointed parenting between homes. The list is endless.
People trot out all the time that it's incredibly damaging to stay in a relationship for the kids and all the harm it does.
Personally I think people should be really examining the damage being done to children when they priotise their desire for a romantic relationship, at the expense of their children's childhood.
Out of all the blended families I know there is only one other I would be happy being a part of with my kids.
The rest are honest to god toxic messes and some of the adults involved are inheritly selfish and the non resident kids most definitely aren't benefiting from being part of them.