I would recommend that you go for it, as I did around two weeks ago. I'm certainly no expert on predicting what speeds you could expect after being "Maxed", but looking at the figures from your router, I'd say you should certainly realise a faster connection than the 2mb you're currently on.
In a nutshell, here's a quick explaination of the significance of those figures from your router/modem, and how you can influence them:
US Margin & DS Margin. (Sometimes referred to as "Noise Margin".
This is the difference, in decibels, between the signal and any line noise. ("US" is the upstream reading and "DS" is downstream.) The higher these figures are, the better.
When your ADSL sync speed is raised (e.g. during the initial ADSL Max period) your noise margins will reduce. For this reason it is beneficial to achieve as high margin values as is reasonably possible, to give your connection as much headroom as you can, as they will influence the maximum speed you achieve when you're "Maxed".
To help increase these figures, ensure all devices on your line are correctly filtered and if possible connect your router/modem directly into your telephone master socket (where your line enters your house).
For wiring and filtering information, have a look at this guide: (http://usertools.plus.net/tutorials/id/13)
DS Line Att & US Line Att. ("Line Attenuation")
Line attenuation is a measurement of signal loss between your router/modem and the exchange (and vice-versa). Typically, these figures are an indication of the length of wire between you and your exchange i.e. how far you are away from it.
Unlike the margin values, with attenuation lower is better. Unfortunately, there isn't much you can do to influence line attenuation values, except perhaps move house!
