SORRY! whats the best satnav for a newbie multidrop london:(

I have both Phillips & AA maps plus a stack of a-z’s for various places around the uk from my previous line of work, I’ve held off buying a satnav as I only use them to get from place A to place B, I have held off buying one due to previous reviews saying most weren’t much more than a car nav, I need a new one & maybe its possible they are a bit more truck specific since I bought my car based binitone one donkeys years ago…if you guys with experience that know London/Nottingham/derby should all know already it can be a nightmare to get around

my old nav doesn’t cope in those citys too well anymore so just after an un-biased opinion on which sat navs seem to work well in those areas really