motorola VHF Advice needed

Hi,

I was thinking of using this radio

http://www.ebay.co.uk/itm/Motorola-2-Way-Radio-GP2000-VHF-136-174MHz-Accessories-/320715992430?pt=UK_ConsumerElectronics_SpecialistRadioEquipment_SM&hash=item4aac29ad6e

for use in urban and rural areas in the uk for surveillance and private investigator type work. I’m looking for any advice if anyone has used them on, range battery life, functions, accessories etc