Genuine question: How do you use it? Do you mean you use it to make purchases, or do you mean you hold it as a store of value, and that's the use? Something else?
I don't hold Bitcoin. I use it for cross-continent transactions. I buy it from people in my city using a local FB group or (way in the past) Localbitcoins.com and then send it to the recipient. They usually use Localbitcoins to convert it to their own currency AFAIK. The fees (transfer and exchange) are much lower this way - usually less than 0.5% all things considered. Compared to $100+ fee to just transfer the money + 5-10% currency exchange fee (both my and the recipient's currency aren't the most well known).
2 days - I get the BTC around noon, transfer it immediately, in the evening I get a confirmation from the recipient that they got it, and then I see them transfer it to someone the second day. Sometimes it's just 1 day.