How long did it take to be approved

Yes I have. No issues at all

No I usually stay for the allocated 60 days granted at the time of entry & leave then return again

I have done a further 30 days extension which costed about 2000 baht. I have also done a visa run once to Cambodia and was allocated a further 60 days stay

I'm retired so I'm not a threat to the Thai Government that I'm entering on any other reason but tourism

I enter every 3 months as my son lives here and I travel as a tourist

They have never questioned me though I stay 60 days at a time