I have a Makita RT0700CX2 with the three bases.
With the fixed bases, there is no fine adjustment. There is a fine adjustment knob, but to use it you have to release the clasp on the base. Once the clasp is released, the base slides up and down freely, so the fine adjustment knob becomes redundant. I think the deWalt has a ring which can be turned for fine adjustment, so may be better.
You do have to be careful of kickback when using roundover bits. The fixed base has a much smaller diameter, so you have to be careful to make sure any larger bits are not in contact with the wood before starting.
In addition due to the smaller mass of the router, it can kick quite far when climb cutting and also if it is unhappy with hard end grain.
The switch on the top of the router is not as safe IMO as the trigger switches on bigger routers. I bought an orange coloured male to female IEC ( kettle lead ) cable, cut it in half and put a plug on one section and a single gang socket on the other, with this I can pull apart the IEC plug/socket easily rather than having to unplug the standard three pin plug from the mains all the time.
For the plunge base, there is no (as far as I can tell) option for connecting a dust collecting hose.
If the collet nut is over tightened, it is very difficult to undo.
Extra bases are quite reasonable from Terrier tools on eBay, but seem to cost more from their website.