Help me, which wideband!?

[TurboTobz]

Been looking into getting a wideband kit and I'm almost certain I want the AEM eugo wideband kit, as ive heared nothing but good from other forum reviews, but I did see The plx-dm6 which looks to have some real comprehensive abilities and features over the aem... Also seen the MTX-L but I read they can be pigs for calibrating a lot of the time! Anyways links:

http://www.plxdevices.com/product_info.php?id=MULTDM6

http://www.innovatemotorsports.com/products/MTXL.php

http://www.aemelectronics.com/wideband-air-fuel-systems-15/digital-wideband-air-fuel-gauge-25/

I was 100% on the aem, but after seeing the features of the dm6 it's started to sway me. Anyone able to push me in the right direction or point me in the way of a different one perhaps?

Cheers, Toby.