early mornings and late at night are the best times to play. Around 2am i went out with a friend, had no lag or disconnections. Around 10am i went out, caught stuff, currently can barely open without it crashing.
Great service, got my first few pokemon done in a matter of a few hours, went to bed and he had mailed them back, ready to get the next set. Definitely wiil update this once he finishes the others.