Just my 2 cents here, i have been using 110v for about 10yrs, recently i have been working with a friend who owns 240v festools. On a current job he had his ts55 set up, rather than get my 110v out of the van i used his to cut some oak tops to length.
Immediately i was surprised to find the 240 version more powerful cutting the top far easier than mine.
Also i bought the of2200 in 110v, i had have conversations with jmb regarding the power of this router but have been slightly disappointed with its power if im honest, it doesnt seem any more powerful than my old dewalt, im a kitchen fitter so cut a lot of tops.
Im thinking about going 240 now as i dont do site work but for me the improved power of the ts55 would be an upgrade.