A very nice choice DJ, but as you have pointed out in your case the requirement was for an accurate stable meter that you could trust every time in the lab, in no way am I comparing the Siglent to the Agilent, the Agilent is leaps and bound's ahead.
In my case it's reliability, practicality and functionality, particularly with the logging feature's, we have in the past been using either Fluke 189's or Agilent U1272A's on a variety of sites generally to monitor feeds, contacts, sensors and temperature on varied machinery.
We seem to get called in when the machinery supplier's and the site electrician's start blaming each other and butting heads where neither are equiped to find a solution. The problem we have with this scenario is that we require a UPS, power supply and then the meter and I'm not a big fan of leaving a fluke on any site for long term as we have found in the past that they have a habit of growing legs and wandering off.
We also have at times simply put everything in a locked cabinet, big battery and a power supply for stand alone logging independant from mains supply, pretty pointless having an extended logging or capture feature on any meter if you cant remotely power it or disable the Auto Power Off for longer terms.
Anyway, for all you other people following, here's a good project for you to do, go and see what your bench logging meter does when powered from a UPS and the mains is removed, please post you results regardless of the brand of meter.
I'm still on the fence, dont need super accuracy but do want better than ball park, I'd rather two meter's covering a few bases over the same time period if required, Real time clocked events are a must and if the meter is not equiped then the trigger out feature would be used as an input to a RTC data logger with a time stamp.
If it was only for the lab and nothing else, I would follow what DJ has done...

Muttley