Solid construction and quality. Bandwidth is almost flat up to 10MHz, I have not tested further (sinus test, a rectangular signal request 10 times more BP). Pity that the time base does not fall below 100 ns / tile. Display of time between 2 cursors, but no frequency conversion (ie I have not found). I do not have to re-calibrate the measurements are correct and accurate, both in time and amplitude (compared with a reference sope). The battery life is very satisfactory, and PC curves backups are a breeze. Against by the probes are very average performance and no correction setting. One of the 2 that I received with the device is unusable, the MCX connector mechanically incompatible (too wide Teflon insulation). Overall I highly recommend this handheld oscilloscope, which is much more than a gimmick, although of course it can not compete with a lab model!