arduino logic analiser - has anyone tried these?

arduino logic analiser - has anyone tried these?
I seen 2 one the code is given away in wiring.
The other the code is in gcc.
The gcc one has a gui.
the arduino wiring one seems like it does not.
I want to communicate to a spi port 24 bit analog to digital converter. the ads1256.

Any experiance gui's and sugjestions would be helpful.