Thanks for the feedback! These are great suggestions for ways to improve the transactions page - I'll see what we can do.
Also, your first purchase must clear before you can make additional purchases. Once the first purchase is complete you are free to buy repeatedly, restrained only by your daily limit.
You really need to have more detail on the transactions page. After I sell bitcoin on Coinbase there is no way for me to go back and look at what the exchange rate was, or really anything about the transaction other than the amount of BTC sold and the total amount. It should list the exchange rate as well as the fees etc.
You should also be able to filter transactions depending on whether they're USB or BTC and see which USD deposits are still pending.