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Similar to other reviews, I spent a LOT of time researching before finally buying the SDS7102 scope. I've had it for 6 months now and can say that's I'm really happy with my purchase. I would recommend the EEVBlog forum review as it is quite good and covers most of the pros and cons of the scope.
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The Rigol DS2072A-S is a very high quality two channel digital storage oscilloscope. It features a real-time sample rate of up to 2 GSa/s, a bandwidth of 70 MHz and an additional built-in 2CH arbitrary waveform generator for frequencies of up to 25 MHz.
A few things that I'd like to emphasize: PROS SIZE - This scope is very lightweight but doesn't feel cheap. There is enough heft to make it work the money! SCREEN - The screen is really nice. Excellent colors and contrast. Easy to read. VGA OUT - Ok, this is a bit superfluous, but it does work and it's useful to display and demo on a bigger screen or projector. Baikal makarov serial numbers. LAN INTERFACE - I just got this working the other day and it works great!
Way more stable connection to the computer that the buggy USB. The only thing is that it's not documented anywhere in the manual! Read the help menu _on the scope itself_ to configure the IP addressing and ports. SAMPLE DEPTH - 10M sample depth is really nice to capture a lot of data at a time for reviewing waveforms. CONS INTERFACE - As expected (and as with any other China Scopes) the user interface leaves a bit to be desired.
Honestly, I've learned to think a bit more like the designers and you get the hang of it pretty quick. Just a few weird quirks with how to navigate menus.
INPUT RESPONSE - The knobs and screen have a small lag that's always there. Not a huge issue, but something I still notice. Not like a good old analog scope where it happens _as_ you turn the knob, rather here you can tell that the knob first tells the CPU to then change something on the screen, and it takes a split-second. SOFTWARE - Also as expected, the computer software is buggy and annoying to use but it does the job and does allow scope captures (just for some reason the captures don't show the scales.I need to find out if that's a user-error issue). UPDATE Dec 2012: The LAN function on this scope is awesome!
I finally found the instructions for it in the help menus in the actual scope (not in the manual) and that tells you how to setup the LAN system to let you get much better and quicker captures which is less buggy than the USB. Overall impression? I've very pleased with the scope's performance. If you're in the market for a good DSO for moderate to advanced project work and don't need the higher speed for baseband debugging, then this is the scope for you.
Extremely portable, great screen, great features (memory depth). My colleagues and I loved it immediately. However, the 2nd time we pulled it out to use it, the triggering functionality stopped working. We tried fiddling with all the settings - input channel, ac/dc, mode (edge, slope etc) all to no avail. We've ordered and received a replacement, and will be shipping back the first one shortly. In the meantime, I've observed a couple small differences between the two: 1) The feet on the new one has a rubber surface and is designed to sit flat on the table in both vertical and tilted orientations. The old one has plastic feet which don't lay flush against the table.