Hi, you also asked about phone vs chat. It's highly individual. In general I feel like the connection is better when I use the phone, but that's not always possible. I will say I've had some great chat readings, so I don't think it's much of a worry that way.
But, in a practical sense, remember that not everybody is that good/fast at typing and when they're not that fast you can get a lot more bang for your buck over the phone.