Well I've one of those LD01, and there a very capable torch
I think Nitecore has MICROSCOPICALLY better build quality . The Piston drive system ( found on some , but not all Nightcore products is very foolproof and intuitive .Both are great products , enjoy !Chris
I don't know much about the Nitecore, but I have a Fenix LOD Q4 and just love it. The brightest AAA light I've ever had. The LD01 is similar to the LOD less the SOS and Strobe modes which you really don't need and the LD01 gives you 5 extra lumens (80 as opposed to the LOD's 75). Since you already have a E01, get a AA light. I would suggest a Fenix LD10, an amazing light for the same price as the Nitecore. You already know the Fenix quality and reliability.I carry a spare AAA battery in an AA upsizer battery tube that way I have the AAA for my LOD or for the LD10 which ever needs it first.Nitecore makes a fine product and the piston drive is unique but personally I don't like the ramping feature to adjust the brightness. I like a clicky switch so I can go between the modes easily. Good luck with your tough decision.
Why don't you go for a Maratac AAA/iTP A3 EOS?
I guess I'll order an A3 as soon as I can as well. Thanks.
Ahhh, my work here is done then...
Are you planning to get the plain ol' black one or the new ones in the new colours?
If you interesterd on the EZ AA, 4sevens is making a surplus sale with 25% discount on black EZ AA Q5, just folow this link and use the NITECORE25 promo code.More info here