Reasonable, but London has the highest standards for parks.
This park is spacious and so it s presumably better for walking dogs.
When compared to the more ornamental parks of London, there are far less flowers, landscaped areas, water features, monuments etcetera.
However, this does give the places an advantage of feeling more natural, and having a different variety of birds.
Notably there are far more corvids than in other more managed parks. There are many carrion crows, who are amongst the smartest birds of all.