I think Ssnake has a very valid point there, apart from his hands-on experience. As he stated, as a new team/project, and from the looks of it (and I don´t mean graphically), they don´t have a investor, or BIG money behind the project. Actually, they only have a very modest Patreon subscription to help out in the project. There´s no goal set kickstarter campaign like alot of other projects. With that said, I get a feeling of a modest, passionate project with good intentions. They seem to be on the right track, and as Neils stated, you don´t need fancy interiors to show off you´re intentions. In it´s basic form, it´s fun and get´s the job done, and to me it dosent feel arcadey. Turret speed could be better, but hey it´s WIP.
Could be wrong with all this, as in everything in life, but as is, you have a full functional demo with plenty to do/try. Which is alot more then some other EA games will give you. It´s a very early alpha, and sure it could be better, but aagain, as it is, it beats alot of EA games on Steam with a price tag on them.
The core of the game, which is what the demo shows, is fun as it is, and it´s alot more realistic (to a degree in it´s WIP mode), then some of the full fleshed tank games out there. At least for me...
To be clear, IMHO there is no game/sim that can compare to SB Pro PE in it´s gener, but if I wanted a change for awhile, I would be happy with something in the line of GHPC.