In reply to 12SHughes:
As others have said, Mantas have been around for a long time and through some very different iterations. I have an oldish pair (just before the current 'tech' style with the soft ankle sections) which are fine for winter hill walking and easy climbs/winter scrambles. When I did the tourist route on Mt. Blanc back in the late 80s, one of the people in the group used Mantas for that.
If they are in good condition, fit you and are comfortable they would be fine for the type of ground you would encounter on a winter skills course and, if your ambitions are then for independent winter hill walking and classic grade 1 or 2 ridges and gullys they would be fine for that too. As an aside, people with small feet and light weight will experience less flex with a given pair of boots so might find them acceptable for steeper ground than I would.
But, you'll be limited in choice of crampons (I use mine with Grivel G10 New Classic), lighter and warmer options are available and if you see this as a stepping stone to steeper climbing, it might be better to bite the bullet and get something more technical from the start but that comes at a price and a decent pair of stiffish hillwalking boots (at the right price) is always good to have.