Cute! I like the Insignia but can't recall owning one. I had that Otterbox one year and promptly returned to BestBuy. I found it uncomfortable how I hold the phone, too bulky for the amount of protection, and overly slippery. Know that any clear based case may yellow with time.
If you can feel them on the phone that should help - check the lip around the edges for an idea of protection. I don't go for heavy duty, but like a bit more than a super slim or softer silicone provides. A clear case is generally fine for me, but finding a good heavy duty clear is harder if that's your preference. What I do sometimes is look at reviews for the year prior to see pros/cons. Keep in mind, sides weren't as protected before due to curved displays vs this year.
You'll have more peace of mind with some retailers like BestBuy where you can return if you don't like it. For me, the hesitancy is that all of the cases add up ($), and I can only use so many. I tend to develop favorite/go-to brands as a result. But this flat screen has me more willing to branch out.
Editing to add, Case-Mate is another popular brand with some sparkly options I noticed when browsing. Velvet Caviar has some sparkly ones if I recall correctly, too, and their cases I've found to be reliable (good balance of protection but not adding a lot of bulk). I do agree that fun options with magsafe built in are harder to find.