Worktop jigs

Morning and happy Easter,

I'm in the market for a new worktop jig and wondered if anyone had any recommendations?

I'm interested in these but am open to any suggestions:

http://www.axminster.co.uk/ujk-technology-premium-700mm-aluminium-worktop-jig-101789

http://www.axminster.co.uk/ujk-technology-variable-angle-worktop-jig-508615

http://www.its.co.uk/pd/KWJ700-Trend-Trade-Kitchen-Worktop-Jig-700mm-
_TREKWJ700.htm

Any advice is appreciated.

Many thanks
Kris