I have bought Truvia today, cost £4.99 in Asda! I remember not liking Slenda when i was on SW, and i liked the fact that this one is a bit more natural. The price though jeeeeez! They had a jar of aspartame for £1 but i couldn't bring myself to even try it (although i know a lot of sweetened food and indeed my muller lights is probably full of the stuff).
I have not tried the Truvia yet, hope it is nicer than Splenda.