Dell Venue 11 Tablet Pro wont power on,bad product

Dell Venue 11 pro tablet would not power on, I have tried all suggestions and guidance. Eventually I logged a call, after a week Dell came out to replace the motherboard, a day later and the product is doing it again. Is this the quality of Dell products? How many calls need to be logged to get this sorted out, unacceptable for an allegedly \premium"product?"""