FWIW we just bought an SDS824X HD at work, figuring it was a cheap way to improve the resolution of some power measurements. I was very interested because I'm considering dumping all my boat anchors at home and replacing them with one of the 800 series. Because we store a lot of files/data I was dumbfounded that it doesn't have an RTC and loses the time and date every time you power up. Not interested in doing a LAN connection to solve that- it should have a battery or cap backed RTC like every other thing in the modern world. Other than that, my complaints are minimal- I tied a small rubber-tipped stylus to the thing with a piece of string because my fingers are way too fat to use the touch screen. It's also odd that they ship it with the earliest firmware revision and it's up to the user to bring it up to date. In terms of resolution and memory, it puts all our old Tek scopes to shame, with up to 10 million points of 12-bit resolution. I haven't explored this in depth but with the old scopes you often had the waveform at about half the screen height and really got 7 bits of resolution at best. The Siglent has a fine vertical step adjust (push the button) so I assume you can take far better advantage of the full 12 bits.