A great range of products and excellent customer and delivery service, I recently bought a 3 unit XY Laser package and found on cheking that one unit wasn't working properly, one quick phone call was all it took to resolve the problem, next day new unit received and old one collected. Handy tip when fitting the 3D filter to this product, rather than removing glass screen which can be very fiddely, tape the filter over the glass frame with Scotch Magic Tape top and bottom which allows you to change the look mid show and revert very quickly. Overall very happy with the performance as I have been with all the products I have purchased from G4DJS. Steve Messenger