I have tried shopping at printvenue.com a few times and my experience is really good with them. I first ordered a wall calender which they shipped on time and I was happy with it and I pasted the calender in my drawing room. Second time I ordered a poster of a water fall scenery which I pasted in my bed room wall. They have a huge variety of printing options which you can customize according to you needs. You can select from various gifting options like birthday posters, anniversary greetings, etc. Although their price is little high but they give some good discounts from time to time.
I really liked the quality of their paper which they used while printing. The best option there I found is that you can customize your mobile phones too. There are many back covers of popular smart phones available in their website which you can customize the way you want. So till now my experience with them is satisfactory till now.