D&L Tint did my 13 and it was perfect. 5% in rears and 20% (I think) for the fronts, looks great and the vision out from inside is shockingly bright for the darkness of the tint.
Had my wife's Taurus done afterwards, only the "legal" 35% (maybe 20% in rear, not sure). One little bubble on the Taurus didn't settle out and they replaced the whole sheet, easy peasy.
Great customer service and done quick! They offer a house brand and a 3M-branded tint, we have the 3M so I can't speak to the house brand. They say it is "just as good" but won't last as long. We keep our cars into double digits so it was worth it.
We used the White Marsh location but no reason to think the other (Timonium??) is any different.