This shouldn't be a problem as you should be taking the utmost care when operating these machines regardless but it's worth mentioning. The Buffalo feels safer to use, as it has an attached handle behind the guard and the position of the on and off switch is located at the side of the machine rather than behind it with the Trespade. Given you may be moving this round the kitchen or in an out of a cupboard it's a fair bit lighter than the Buffalo - which is a beast. The blade sharpener is not integrated with the chassis like the Buffalo, again meaning more work but it's no biggie.
It's not as easy to clean as the Buffalo, as taking it apart requires a little more work- but its a minor niggle. The Buffalo 250 CD 278 weighs in at £419.99 Ex VAT. At £320 Ex VAT the Trespade D-250 is the cheaper of the two models.