I suppose I'm old school now, and I've used my trusty telaris 0100+ MFT for at least 10 years and Robin seperates for 10 years before that. If I was buying again my wish list would include
It has to be multifunction and more.
Used standard banana plugs
Could be operated with 1 hand at the top of a ladder
Could firmly hold a probe in it's holster
Could test continuity and IR continiously without needing it's button pressed.
Had a screen that could be read in low light from any angle.
had an RCD ramp test
Continuity buzzer.
Volt stick type light in the probes
Replacement probes, leads and croc clips you didn't need to sell a kidney to be able to afford.
Could do Zs tests without a neutral on a circuit protected by an RCD
Will still work after it was dropped.
Was rain proof (swimming pool or garden pond proof would be even better)
Had a dispay that did not crack if anything pressed against in its carry box.
Had a recepticle for a pen
Had croc clips that would properly grip and hold their own weight on wire ends, pipes and earth bars.
Had croc clips that both sides of the jaw gave the same continuity measurement.
Had leads that would plug into probes and or probes that would plug into (and stay in) crock clips, 13A plug, BC holder (with earth to the cap) and ES adaptors (i.e. 1 set of leads did the lot)
Probes that could be operated in one hand like a pair of scissors.
Phase rotation test
Could hold a probe to free up your hand to use a screwdriver (like the pen holders in banks)
Had some means of holding the meter that could support it's own weight (magnetic, velcro, hook, neck-strap etc)
Had tangle resistant leads.
Had selector switches and push buttons that could be opersted with the same hand that was holding the instrument.
My wife says she will divorce me if I spend any more time on my PC on a Saturday night so I'm off to thy other life of enduring X factor, Strictly, or last night's Corrie.