I am. DH is away for 10 days right now, and just today I was thinking how glad I am I married him.
I was insanely in love with someone else but would have been desperately unhappy married to him and I knew it. He was insanely in love with me too, and I think he thought the same about me. Even at the height of it, I remember thinking: I can't do this forever, I want to be able to focus on my life, not on him all the time.
DH, by contrast, was so calm and dependable. Some people might think that means boring, but I came from an upbringing that wasn't calm or dependable, so it was very refreshing and new for me, to be with someone so reliable.
And we have similar sense of humour, lots of interests and tastes in common, so even after three decades together we still skip off all excited to go to a gig or exhibition.
Over all those decades, of course you see flaws in each other and in the marriage. But life and love are rarely perfect. If you are with someone you like and love and fancy, who feels the same about you, who you can talk with, make plans with, rely on, have a laugh with, do nothing with, have adventures with... then for me, that's ideal.