Laggan is awesome, my favourite trail center when i go up north. Yes im from the midlands, but also i have visited Laggan 3 times in the last few years, i often stay at Ft.Bill and then drive up. The cafe is basic but worth the cash for some beans on toast etc..
The trails, the orange fun park is great fun, fast and fun, they do an uplift at some times of the year so worth a look. The Upper red is the better of the 2 trails, the newer lower is ok has some great views, worth a one circuit, the black looks superb but ive not been brave enough.
If your heading that way, do try the Nevis Red xc, its the only trail where ive feared for my life, its that good, again the view from the top is immense, and the northshore is challenging in places but well worth the money for the gondola up!