I did one in Pattaya, September last year. I was in at 8.30 am and out by 9.05 am. It's not bad if you can get the form and fill it out prior to getting there. Just get the all they ask for and it's only 1900 baht doing it yourself.
I have had 2 Thai bank accounts for 20 years +. Any amount of interest is already taxed automatically. I don't stay longer than 180 days a year in Thailand so I don't need to declare anything from overseas.
I did it last week. As I live in NSW the evisa site ended up having me apply at the Thai Consulate in Sydney. When applying for the visa choose other, then choose from the drop down menu, retirement over 50 pensioner. You must show equivalent of 800k in your Aussie bank account which I had. This visa is a non o retirement and costs $120 aud and that will be a 90 day visa. I will extend that when I am in Thailand either by putting that 800k in my Thai bank account or by using an agent. Good luck!
it means multiple entry tourist visa and costs substantially more. In Australia the single entry is $60 for the METV it's $300 but different Consulates around the world have different prices.