Hello Mr Veritas.
I have tried this wine, and it is good - a bit of a subjective word in the context of wine.
Vina Maipo is in Chile's oldest established wine growing area. They are an established producer of quality wines. Some sparkling wines are, perhaps unfairly, seen as Champagne substitutes - particularly those from France's near neighbours. Vina Maipo, on the other hand, is a good sparkling wine in its own right, with its own character
The base grape is Chardonnay (same as Champagne) but the Chilean climate really works well with that grape. The other grapes in VM are Reisling and Chenin Blanc, both of which are good "flavour" varieties. They give the wine a lot of personality.
Liking or not liking wine is very subjective. However, you have spotted a good bargain here. Good to stock up for a summer party, perhaps, or just to enjoy when you fancy a glass of something fizzy (the Reisling makes it good to have with something like Chinese food). But don't keep it too long. As with any wine bottled under pressure, it can lose some of its fizz.
Something to look for with NV (non vintage) sparkling wines is the age. Vina Maipo blend wines from different years in order to maintain a consistent quality. This means that the label does not have a year, as far as I can recall. The rule of thumb is - drink the youngest available. If there are a lot of bottles out, especially if you can see the boxes, pick the ones that don't look old.