Comfortable riding position for an arthritis sufferer

Poor gearing system. Inferior braking system and gears compared with my previous bike, a Marin 'San Anselmo'.

Having had a Marin 'San Anselmo' for 5 years I decided to change and buy a 'Redwood'. The 'San Anselmo' never gave me a moment's trouble all the time that I used it, but the gear shifter on the Redwood is a pain! Simply will not give a clean 'shift-change'!! Pointed out the problem to the dealer who has tried to rectify! Can I wait another 5 before going back to a 'San Anselmo'? Only time will tell!