I like my SB6141 pretty well, personally.
A lot better than the SB5101 we were renting from TWC, seems more consistent on download and upload speeds (though like 5101 it also has a tendency to randomly lose connection now and then, which seems to be an issue on the ISP's side as we also have ongoing cable issues as well). Must have had that thing for 6-7 years. I would have liked to upgrade to a newer DOCSIS 3 modem, but the techs they sent out when we were having cable and internet issues in 2011-2012 said we couldn't upgrade to a newer model of modem unless we also upgraded our internet service package. Such is why I went and bought my own modem and installed it myself.
My other choice when I upgraded our internet service would have been the SB6183, but it was out of my price range. Also didn't seem to be much point in buying it, since the 6141 supports 300MBps, which is more than my ISP (TWC at the time, now Spectrum/Charter Communications) even offered.