First let me apologize for the attitude you're facing here.
@fav is one our trusted, long term ecosystem supporters but he doesn't pull his punches and is not afraid to tell you his opinion. I will not withhold my opinion either but will try to be constructive.
I disagree with fav's assessment of your website. Yes is is very simple, but it is modern and based on common single page layout. I also agree with you about the importance of the website working well with the widest number of browsers.
I am disappointed however that your announcement info is IMO, quite limited. You haven't described your team's political orientation, identity (not required but helps establish a rep; you can also do that thru providing quality services, but it will take more time to establish your competency and reputation to get established in the eyes of the community).
The founders of this ecosystem, as with most of the early crypto projects, had a highly libertarian perspective. They realize the impact cryptocurrencies will have on the world and are well aware of the opposition that will come when the financial oligarchs realize their power is being taken away by empowering individuals with peer to peer, censorship resistant blockchain technology.
In short my assessment is you seem to have good intentions but your efforts need refinement. Moreover you haven't described your plan in sufficient detail to provide confidence your team can pull this off or that you understand the market or have identified specific shortcomings and powerful features in the UI you will address. Have you identified your target audience specifically? "Mainstream" users is way to broad to know what features will be considered important. You have traders, holders, speculators and many other divisions within that "mainstream" definition, and IMO you will need to first identify the target user profile you will base your UI design on. I have always thought BitShares provides such a wide array of services and features it will require several wallet UI designs (or UI modes) to address the needs of a wider demographic will demand. Traders and savers (looking to find a safe haven for funds in the precarious mainstream financial institutions) have conflicting requirements; traders like volatility and savers don't for example.
Although the mission and vision of the founders of this community were strongly libertarian and freedom oriented, we now see a lot of "mainstream people" coming to crypto that don't care about such principles. If this experiment in building an independent, alternative, freedom promoting economic system becomes diluted and dominated with mainstream thinkers who want mainstream adoption regardless of the cost to personal freedom and financial independence, we will become even more enslaved, controlled, monitored & regulated.
Also, are you aware of the other efforts in progress as well as already deployed of other wallet designs that improve newbie onboarding? How will your efforts differ from those?