We normally don't use SMD parts smaller than 1206 in our products.

SMD is very easy to solder with a conventional soldering iron, a hot air rework station or an oven. Passives are much easier to remove and replace than their through-hole equivalent too.

To solder a resistor or capacitor in place dab some solder on one pad first, them set the part in place with tweezers and reheat the solder until the part sinks into place. Once the part is in place solder the other lead.

To solder an IC put solder on one corner pad. Set the IC in place and reheat the solder until the part sinks into place. Once you have it aligned solder the opposite corner in place. Once you have it aligned and tacked down on two corners solder the rest. Any shorts between pins can easily be removed with a solder sucker or some solder wick. ICs are even easier using a hot air rework station and some solder paste because the IC will align itself.