I had... Instek GDS-1102A-U
was the best in that class/range...
also better than Uni-T 2xxx series.
& has lifetime warranty.
Fan was noisy, Probes were not exactly x10, and scope didn´t had fine probe compensation, probes were x5.5, but scope only had x5.0 "useless for high voltage measurement, 120vac was displayed as 140v or something." 600vac was like 700vac., but worked no problems.
self-calibration was needed often "each week" or when moving it too much, or if room temperature was very different.
cpu/gpu was slower when doing ftt,
internal clock was very accurate, the frequency counter was the best things.
1mV per Div, very low self noise floor, but sensible to bad Ac power like all, "don´t blame the scope if you have a zillion SwitchMode PSUs connected to the same AC power line."
Sold it because all depends on the purpose.
for a 100Mhz 1GSa/s was very nice, better than any hand held Fluke, and is very portable...
but the stuff i wanted to measure was not enough.
was great for doing most stuff... 555, etc...