So our Salter 1450 was delivered today and we tried it out. I really like it and can get used to the extra time it takes to find a food on the database over looking up a code. However, I want to ask people who already own this, does your buttons sometimes stick... I mean do you go to press it at times and have to press more than once to get it to work? or have to press it at a certain angle/certain pressure, etc. Maybe it just me, but I find that I will go and press a button and it sometimes does not work with the first press (ie. have to press 2 to 3 times for the letter 'A' instead of just once. Please comment so I will know whether I have a dud.