1. Data feed is quite good however may be because it is beta version it gets frozen sometimes on my laptop. Point to note is however its not like Nest which once hangs must be closed and restarted to ensure correct data feed.
I did not face this problem with Pi yet.
2.There is a "Export chart to Excel " function provided which opens an excel sheet with all quotes from chart exported to excel sheet however as of now I don't see it can be used like we use it to feed it to Amibroker or Metatrader.
3.
This option lets you place a quick limit order
With Snap quote dialogue, you can select from any of the 5 bid/ask to place orders directly.
Also you can trade directly from chart using Buy here / sell here option in chart.
4. Drawing trend lines and other studies is okay however they have to work on it more. For example today when price broken previous low made a new low and reversed then if I want draw trend line connecting these 2 points it does not let you select the new low and extend it as there is no space below and its frustrating.
There are options to Save workspace, Save chart to Disk, as image and as template. However they are still not working and whatever I draw on charts doesn't get saved.
They have given options so it has to work and may be it will work when they will release a stable release.