Pros:
Far superior installation method compared to Floating Flooring
Solid underfoot - floor does not move or creak
Vast areas can be installed without expansion bars
Can install kitchen on top of Glue
Down Flooring
Can fix to floor if need be
Floor can finish 3mm from joinery.
Gap can be filled with colour-matching silicon, or be covered by a profile
Less subfloor prep than Floating
Flooring installation
Generally less problems than Floating
Flooring installation