It's been a long time, but I think I had about a thousand US when I first arrived, but I also had a place to stay when I arrived that was free for a month, and then I paid 4000 NT per month for it.
I also had a job when I arrived, but as I recall, it was six weeks before I began to get paid. A bit unusual, but I began in the middle of the month and got a month and a half worth of pay the first pay day.
For me, that thousand was fine, but I didn't have rent, didn't have to pay a deposit, and really only paid for food. Well, also personal items and such that I hadn't brought with me, or not enough of.
But I spent way too much on food, eating almost exclusively western food. I'm a very adventurous person in a lot of ways, but I'm a picky eater, so took me some time to venture into the local fare. Anyway, at the end of the month and a half I was broke and very happy to see that pay day!